Valid criticism does not marginalize the Islamic community.
Cutting off the heads of innocent people while chanting praises to your moon god maarginalizes your community.
Raping girls for not following your medieval customs marginalizes your community.
Letting the most extreme of your community get by without criticism while rioting and killing over a few insulting cartoons marginalizes your community.
Suckling off the tolerant and hospitable teat of western civilization while calling for their destruction marginalizes your community.
Get the picture?
Well said.