Secondly get workers back to work by ending COVID-era unemployment payments and workplace restrictions.
The purpose is not to eliminate Cryptocurrencies, but to reduce the price of Bitcoin and other PoW coins such that mining (which is a misallocation of our civilization's energy and advanced manufactured goods) becomes significantly less rewarding.
Ethereum at least has a Governing body which is moving it to PoS. Bitcoin does not. Government regulation is the only answer.
edit: to head off the downvote brigade, I'm not advocating for this. Only pointing out that "banning" doesn't necessarily mean outlawing its use, but can also include making it unfavourable to use.
Also crypto was thing that just pushed us over the edge, before that Apple was buying out (preventing any chips from being manufactured at) entire node sizes, there were serious issues with semiconductor manufacturing already.
Crypto hardware is generally "just logic" which means that it's (1) fabbed on fairly modern processes and (2) generally quite portable to other processes just by recompiling your Verilog and wiring it to a different manufacturer's PCIe PHY or whatever.
There are some problems for which banning isn't a solution, but there are some problems for which banning is actually a viable solution. Should we "learn" from the war on drugs and reverse the ban on CFCs? Should we avoid banning toxic substances from food?
You're gonna need a better argument than "activists who want to ban stuff should have learned from the war on drugs". You're gonna need to argue why banning cryptocurrencies is more like banning weed and not like banning CFCs.