if the Bible didn’t have passages saying that people will fall away from the faith I wouldn’t think people could, so because it does I do.
You are mistakenly equating believing bad doctrine with losing salvation. If the "faith" we fall away from is our salvation, there is no hope for any of us. As
@TokiEl said, we are all deceived in one way or another.
I know we've gone up one side of this and down the other on other threads, but if we are talking about a falling away, logic and the evidence in front of us would indicate that it's a departure from good doctrine.
Apostasy is a rejection of the truth. The Catholic church doesn't qualify, because it started out as apostate. No, the falling away is happening in mainstream, Protestant churches. Prosperity gospel, acceptance of homosexuality, replacement theology, "New Age" gospels, etc.