So in the West it is Christians vs Muslims, in the Middle East it is Jews vs Muslims, in India it is Hindus vs Muslims, in Afghanistan it is Sikhs vs Muslims, in Myanmar it is Buddhists vs Muslims and again in Oceania it is Christians vs Muslims.
Why are everyone against Muslims? Because Islam is basically an imperial religion which propagates that there is no other true God except Allah and believes that people of other religions are kafirs or infidels who should be converted to Islam by any way possible. Because of this smugness most Muslims find it difficult to adjust in any country they go to. For eg: India though has been invaded many times in history has seen all invaders who settled down here adjust in the home culture of India be it the Greeks or the Huns but Muslims never really adjusted to the culture in India (or anywhere in the world).
Let us take a note of great civilizations which were put to dust due to Islamic invasions and insistence on monotheism:
a) Egyptian civilization b) Parsi civilization in Persia (Iran) c) Indus Valley Civilization in the territory now called Pakistan d) Mesopotamian civilization e) Native African tribal civilizations f) the polytheistic religions of ancient Mecca g) the Hindus, Buddhists and Sikhs of Afghanistan
And how has Islam spread so fast world wide? Not by making people realize that it is a better religion but mainly through jihad, warfare, conquests, manipulations, etc. The country Spain had become Islamic in medevial history however Christian Patriots teamed up and dethroned Islamic ruler Boabdil and reconverted the masses forcibly converted Islam back to Christianity however such examples are less as most countries whose native civilizations collapsed could not stand up to the Islamic onslaught they faced.
There is no hate or false propaganda here when it comes to India. Hindutva in simple words means core-Indianness. You can only be a core Indian if you regard the Indian soil as your own home. The original communities of Hindus, Buddhists, Sikhs, Jains and Lingayats originated right here hence no controversy on that and all are considered to be in the core-Indian fold.
Parsi or Jew communities didn't originate here but are also agreeable in the Hindutva definition because they accepted this soil as their own as they faced persecutions on other lands before they settled in India. Muslims and Christians who can put their country above their religion and in general live an Indian way of life are also core-Indians and complementary to the Hindutva concept.
Speaking of Hindu word in Hindutva (the word Hindu is used for core-Indianness here as ours is basically an Indus (Hind) civilization where all indigenous communities follow a similar Hindu way of life which is peculiar to this land).
However hardliner Muslims and Christians who put their religion above their country are regarded as pariahs (outsiders) because:
a) Islamic and Christian communities didn't originate on this soil. Their places of worship and their kind of people live elsewhere in the world creating conflict of interest For eg- if India tomorrow goes to war against Saudi Arabia, the home of Mecca and Medina then whom will the Muslims support or whom will Christians support if we are at loggerheads with the Vatican?
b) The Quran teaches Muslims to be monotheistic (worship only one God), adhere to Muhammed, worship no idols, and propagate their religion to maximum people. Their religion differs from core religions of India as we are polytheistic and worship many Gods, our prophets or Gods reborn in human forms as per our mythology did fight wars with a message that good will triumph over evil and not with a message that its a victory of my religion over yours. Hardliner Christians like Muslims also believe that non-Christians are not civilized unless they convert to Christianity
c) Most Indian cultures believe in showing gratitude to even animals and equipment which help us in our day to day lives so cows are held in high regard, bullocks have a festival dedicated to them and even machines and instruments are worshipped on certain occasions. Hence culturally Hindutva finds beef eating abominable which Muslims in some parts of the world do.
d) the belief that Muslims have violence in their blood as even their children witness animal sacrifices from a very young age and it becomes a part of life to witness sacrifices every year. Hindu butchers or sacrifice practitioners on the contrary take care to keep children out when a sacrifice is being performed and most sacrifices in Hindu culture are performed with a jhatka concept (where death is administered quickly and with a view to cause least pain unlike the Halal concept followed by Muslims where the death is slowed down)
e) Hardcore Muslims wear unique dress, and display a lifestyle which resembles a Middle East culture more than an Indian one. Non hardliner Muslims often follow the Hindu or cosmopolitan way of life and can blend well into Indian Society.
f) Hard-core Muslims grow on a religion centric concept in which loyalty to their religion is greater than loyalty to a country or specific land. Again different from Hindutva where loyalty to our land and soil is highly regarded.
g) India was also ruled at various times in history by Muslim rulers who fanatically tried to propagate their religion but also whose community members are today regarded as minorities to be protected and appeased for votes.
h) Hardliner Hindutva stops where and when hardliner Islam stops too. Veer Savarkar famously said that he will forget his religion when the Moslem is ready to forgets his.
So basically Hindutva is not about Muslim bashing, it's more about bashing hardliners and fanatics who try to spread and propagate their culture in our lands.
This answer is not meant to offend someone but to highlight the concept in a more direct manner without using euphemisms.