Love / Polish girlfriends family, they want me to become Catholic. [20]

Im muslim, persian, educated(able)..heh, and my girlfriend's mother is rather unwilling to sacrifice her blinkers on her eye lids and welcome a non-polish non-catholic gentleman into her family life. Yet its not limited to only her mother, her larger polish "family" is indeed unaccepting as well.

Girlfriend says "the hell with them", but come on...
1) it's evil of me to encourage her to dismiss her families wishes and roots.
2) Its quite difficult to have a relationship, and children with someone who's family won't accept you.
3) You can never leave your childhood customs and traditions behind.

And also, for those of you who might guess it, I am muslim. And to those who are Muslim or not...and belief that a Muslim man has the right to convert his wife to Islam: well sorry to burst your bubbles, but a true Muslim knows that it is unacceptable and unfaithful to force your wife to belief to convert by force. If she wants to, then that's good.

If not, then as a Muslim man, you are not allowed to force her into conversion. In fact, you must allow her to pray, go to church (or whichever), have her christmas tree, have her study groups....and so on.

The only thing you can abolish in your home, even if she is not Muslim, is alcohol! (and possibly porc...) but you better do your own research.

So back to the question: Well there is no question. Just dicuss this with me. Why are Polish mother-in-laws extremely cruel and what can be done about "Madame Butterfly"?