I get that they’re Muslim, but come on, we live in the West and it’s a free country.

Unfortunately, that isn’t up to you to decide for them.

Be careful, try to respect a (probably) different culture. You will not be able to change them.

Try to find out what is possible to do and tell, and what is good to do and tell. It’s going to take some time (we cannot know how long).

If you behave respectful now, it will earn you their respect and this makes both of you a happier life.