You are absolutely correct, of course. If a non-Muslim mook or gang of non-Muslim mooks **** a woman at a music festival, that's not as bad as Muslim Mooks doing it.
No one has ever even implied that. It's just that this kind of thing rarely happens outside certain 'communities' mainly made up of swaggering, violent, macho men to whom women are there for breeding and cooking and nothing more. That pretty much describes much of the Muslim world as well as black, inner city America. Your googling a few cases of multiple
**** doesn't change that. You'd be as logical in producing cases where whites murdered people and say this means blacks don't do it in disproportionate numbers. Or, for that matter, showing a few cases of women murdering people to fight back against the suggestion men murder people more often.