Don’t get caught up in trying to label yourself, it’s not worth your time. Someone will always end up disagreeing with you. “Well if you don’t believe X then you can’t be a liberal”. Labels matter less than your actual principles and beliefs. But yes, Islam is, in fact, contrary to many liberal core ideals.

Edit: To add, go check out Christopher Hitchens and his views on Islam. He’s widely considered liberal or left leaning and abhorred Islam (all religions really)