That sounds fantastic, except that in our capitalist economy the wealth will not be shared by everyone, and will instead be funnelled directly to the tech oligarchy, while workers get laid off. Until we fix that part of the equation, innovations to efficiency will continue to result in working people getting screwed over by technological innovation.
It will be equally politically difficult to ban AI as it would be to grab some of the wealth generated by AI for the exact same reasons - either attempt would be fought against by the same tech oligarchs, for the same reason. To protect their money.
If we are going to have to fight them anyway, let's fight for the one where we don't have to work jobs that could be done by computers instead, while still having the same income.
And we don't have to get rid of capitalism entirely to spread the wealth. UBI can be used in a capitalist society, too.