The One True Religion?

I saw this on Twitter the other day:

"Every religious person has the one true religion. They can't all be right. #atheist"

I agree with this tweet, mostly. But I would amend it slightly as follows:

"Every religious person thinks they have the one true religion. They can't all be right."

Most people do believe they have the "one true religion." If they don't, they have no business belonging to that religion.

If they don't believe that what the religion says is true, why are they a part of it in the first place?

Obviously, every religion can't be right. If you were to take just about any two religions, it is likely they are going to claim contradictory things. No serious person of faith should believe that all religions are right in all they teach. No one who values logic should believe this either.

Various religions can agree on many different things, and they can be correct about many different things, but on some point they will differ in a way that clearly shows they cannot both be correct.

So, I'm not exactly sure what this person is trying to say.

Maybe they are saying that most religions and more religious people are wrong in some way. If so, again, I'd have to agree for reasons noted above.

Maybe they are saying that this is somehow proof that all religions are wrong. However, it does not follow that since many people have different ideas, and that many are wrong, that everybody and every religion is wrong.