What the actual quotes are, starting at 12:30 timestamp during investor questions segment:
"We are able to do simple factory tasks in the lab"
"We think we'll have Optimus in limited production in the factory doing useful tasks by the end of this year"
"We may be able to sell it externally by end of next year. These are just guesses"
For the first quote, they literally have a PR video on youtube showing this. Go see it for yourself.
For the second, this is a no-brainer. They already have robots in their factories doing useful tasks. It's not really a stretch that a humanoid form-factor robot could be doing the same.
For the third, he clearly said "may" and made it super clear this was a guess. He's also not saying it will be doing your dishes by end of next year, he said selling it externally. Which may be for external lab purposes or for other manufacturers.
"There is no meaningful limit to the size of the economy (whatever this means)"
I think it's pretty clear what it means - autonomous robots that can intelligently do human tasks are going to massively change how the economy works. And it's very, very likely that we will (at some point) get to here. He's not promising when that's going to be.
You're continuing to prove my point - people take the things he says and wildly misconstrue them and then act like he's literally Hitler. Don't get me wrong, Elon is an asshole and a transphobe and has some weird stick up his ass about immigration. But it's a pet peeve of mine for people to make up shit to be critical about while ignoring the real problems (like transphobia). It's also attacking the amazing talent and teams at Tesla/SpaceX for people to keep acting like it's a total shit show when it's really just Elon not shutting up sometimes