The thing is, as Amy Shira Teitel points out in her latest Vintage space video (which can be found here: https://www.youtube.com/watch?v=e0ERXwhn-5w), getting humans even to the moon is hard, and the circumstances that drove the Apollo programme were rather unique Trying to not merely replicate what Apollo achieved but to go one better and come up with a system intended to get us to the moon in order to start building infrastructure up there is a huge task, and no-one in their right minds would expect a NASA-type setup with contractors, sub-contractors, political interference etc to deliver on the same very short kind of timescale that Apollo happened in.
Maybe a company like Blue Origin or SpaceX might be able to do that if that was what their business was focused on, because one organisation doing everything in-house can streamline things better than a NASA-type situation. But absent another serious "space-race" starting (hmmn.. US vs China maybe?) I am not expecting the Artemis project to deliver anywhere close to on time. I'll be highly delighted if they do, mind!
Big fan of Zubrins "The Case for Mars" and Elon's efforts with SpaceX though I am, getting people anywhere off-planet is damned hard, and it seems to me that a lot of folk - and most politicians - greatly underestimate the challenges involved. It'll be a long while yet before human spaceflight becomes mundane, I think. And I'd REALLY love to be proven wrong about THAT!