Are all religions cults?

[RoadRunner79]

It may depends on what you mean by the word cult. The problem becomes when you start to equivocate, and in many instances, if your context isn’t clear, people may think you are saying something else.

Like................... delusion?

I probably wouldn't use that word.

However since you brought it up.  If I remember correctly, you get a little uppity, when I make statements about atheists making claims, and then saying that they are not making any claims about reality.  I don't think that you can call someone delusional, without making a claim about reality (which would thus require support).   For what that is worth anyway.