It's not just a cultural invasion, its a full fledged demographic invasion with aim of making India an Islamic country. It is not new, started almost one thousand year's back when muslims arrived at the northwest frontier of then bharatvarsha (now Afghanistan). Since then their march has been slow and steady. From 0% they are now more than 30% of the Indian subcontinent. They have 3 Islamic countries surrounding the divided and "secular" India. Hindu's for past thousand years, after loosing a 3rd of their brothers, have not yet realized the fact that days of hindu culture on the face of the earth is really numbered. We are now in the worst and final phase of this massive aggression where secular hindu's have taken up the battle for islam against hinduism. Muslims don't need to do much these days, except bomb occasionally here and there and issue fatwa's in places where they are majority (I'm talking about secular India, not Pak or bang) - the secular hindu's (who I'm sure will be muslims on re-birth, if they have that opportunity) have been doing the rest for past 60 years.
You may do some search on hindu websites for more scholarly articles. You may devote sometime to study of koran and islam, and find out that they are not supposed to stop killing until the world is muslim. But the main question remains - what you gonna do?
For all the misinterpretations of the hindu scriptures (the greatest personality that was ever born on earth, who inspired the mighty warrior to slay his own family - as revenge of injustice/ashurik is the greatest dharma, has since become playmate to gopis and bhaktas) that have gone around for even a longer period of time than muslims have been here - it's not possible for most hindu's to realize that it's time to fight or die.
But I believe in 2 mantras now: -
1. We will eradicate the world from islam and radical xian’ity
2. Our victory is certain as we are with the dharma.
May Dharma be triumphant again.
Hari Om