When unemployment benefits keep getting extended forever, at a certain point it stops being insurance benefits and starts being welfare. Also, unemployment benefits are obviously, at least at the margins, a disincentive to take a lower-paid, less attractive job than the one that was lost. Thus, extending unemployment benefits has to got to have at least some negative effect on the employment numbers. And I don’t recall where in the Constitution it says that it is responsibility of federal taxpayers to pay money to those across America who are out of work. If a state wants to set up and pay for unemployment benefits, then certainly they can, but I don’t see this as a federal responsibility. (Which is is not at all to say that the economy is doing well, that Zero isn’t mishandling it horribly, etc...)
I agree that when unemployment benefits are continued indefinitely they become welfare benefits, but in most cases they are much, much lower than the individual was making when they were working. I suppose this is an incentive to take a lower paying job, but when you have politicians who are actively trying to put people out of work through insane, arbitrary marxist policies, even lower paying jobs are hard to come by.