A culture with sharia law that oppresses women, an unnecessary heavy punishment for minor crimes is objectively regressive, things like killing gays and atheists. Reprehensible facets like this shouldn't be tolerated, this shouldn't even be argued. No one is proposing to start a war over it, nor is anyone saying this should justify anything more than a rejection, which is nothing more than that all of these should not happen in progressive places, anyone can come to progressive countries as long as they share the same progressive value as those countries. On a side note, I don't live in the United States, I happen to live in Singapore, a multi-cultural society and I have a few Muslim friends who are nice and chill people. I know for a fact that the factor for violence cannot be solely put on religion but there is, however, a culture in the Middle East that pushes the violence and regression in Islam constantly and no one really has a good solution to solve it.