Yes, we can choose to ignore things that contradict our beliefs. Or we can look into them and see if they are true or not. With religion, who knows what is true.
Anybody in most any religion can be a good person, but they can all have completely different concepts of who or what God is or even if there is a God. Belief in those concepts becomes important to the believer. Those things become the truth to the believer. But between different people those beliefs can be most anything. They can completely contradict the beliefs of a person in some other religion. And even though each believes theirs is true, they all can't be true.
And, even the Baha'i Faith, that says that all the religions are true and from one God, they don't believe all of the things believed and taught in those other religions. So, what does that mean? That the other religions are partially true and partially false? And, conveniently, the Baha'i Faith defines which parts are true and which are false.