The difference is that the industrial revolution amplified labor, while AI actually replaces it in many cases. AI + human is less productive than AI sans human. It's not just a difference in magnitude, but one of sign.

Cheaper labor elsewhere does not obsolete labor itself, it merely implies repricing or arbitrage.

It doesn't really matter how hard the labor market is hit, once it is already dead.

Means tested welfare fosters dependency, crime and generational poverty, and implies support of a vast administration and enforcement apparatus. It is used as a coercive stick to compel behaviors, and often those behaviors are harmful to the individual recipient - e.g. families that go fatherless, to protect AFDC.