Why do they hate us?

I think thats the best thing you have ever said..the last sentence:

" sectarianism in muslim societies is just an extension of hindu casteism..."

Marriage is union of not only two persons but families and its culture. Anywhere in this world people try to mary with people who are like minded or like cultures or like religious etc. *Nothing wrong with that. *

My own family has people from all provinces of Pakistan and inter-cultural marriages are very common.

I also admit that few people did carry on bad cultural deeds for a while by living side by side in India but I am glad Pakisan was made and people had something else better to look for!

The caste system which is most prevalent in India and its history has been based upon false connotations such as who is actually a decendent of God or closer to God or its family or something like that crap etc.
.............Burhaman versus Shooders/Achoots (Untouchables).

If India/Hindustan has anything to say good now about its half hearted attempt to eliminate this caste system...is DUE TO ISLAMIC TEACHINGS and MUSLIMS AS EXAMPLES.

This example was given to locals long before any other civilization set foot on Indian subcontinent.