So you are ok with the “Bhai” roles … now your grudge is only on the “terrorist” roles … good
As far as terrorists go … they are also potrayed by perhaps all the religions … muslim / hindu /sikh … ete etc … so there is no special quota for muslims as terrorist as such. So in case you have a specific case you want to discuss, all i will say for every muslim terrorist character in a movie, there are atleaset 4-5 good characters played by muslims.
For really crass potryal you need to watch “some” Pakistani movies and their depiction of “Hindus” … but that is topic for another day !!!