What exactly are you asking?

They have their beliefs. You have yours. You presumably want to be able to hold your own beliefs. They presumably want to be able to hold their own beliefs. You may disagree with their beliefs, and you should be free to express this, if you so desire. They may disagree with your beliefs, and they should be able to express this, if they so desire. It's irrelevant who "you" are in this case, and who "they" are.

Even if they choose not to respect your ability to hold your own beliefs, it's probably best if you still respect their ability to hold that belief.