> Elon said that will never happen

Do you have a source for that? Specifically that they would not do it for a paying customer? From what I recall they have said the opposite. You may have heard a statement that they don't think they will ever have a customer want to pay to human rate FH when Starship is better and cheaper.

> SLS is ready to carry humans right now

Either it is ready or it is not. It needs to be tested first and will not be ready to carry humans for a few years assuming everything goes according to plan. It would be ridiculously dangerous to put humans on an untested rocket, not to mention the capsule on top does not yet have a full life support system and the Artemis 1 launch will not have a working launch escape system.