Correction: we won't.

I'm not saying it's against the laws of physics, just that it's not achievable. If people worked differently, we could allocate resources differently.

Like, due to lack of political willpower? Or do you see some fundamental limitation of, say, an automation tax?

Arguably we haven't seen redistribution of wealth due to past automation advances, so it seems unreasonable to believe it will happen now. As automation has improved in the last decades especially, wealth has disproportionately moved upwards.

>if we can redistribute the AI-generated surplus, this will still be a net-win for us all.

which historical technological development that hugely improved productivity do you feel has led to an improved universal social safety net / public investment in whatever country you're from?

Yes, the complete impotency of anti-trust and big business regulation over the last 50-60 years.

And any political willpower that exists is constantly used for smearing campaigns for either side of the political spectrum (e.g. look at them, they are the bad guys).

Automation tax is also the worst possible outcome, since it both stifles innovation AND doesn't address the redistribution problem.