This is poor reasoning. It assumes there will be enough extra jobs, but there is a friction to that. Wallmart trying to staff up with more people will also not

This is poor reasoning. It assumes there will be enough extra jobs, but there is a friction to that. Wallmart trying to staff up with more people will also not be trivial for them, and come with more fixed costs. Obviously it would be better with a magic way to get rid of second jobs for poor workers (and stuff like UBI and JG nicely avoid these issues without magic) but it still would be win for labor.