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The hard locate idea isn't obviously unreasonable for medium-frequency trading, but it's not really workable for market-makers - assuming regulators and exchanges continue to require them to make two-sided markets.
None of these proposals seem to address short derivatives positions either, so I don't know what you'd expect to happen - presumably underlying and derivative prices just diverge because you can't arbitrage them any more. That will increase slippage on things like tracker funds, but I guess most voters won't notice until they wonder why their SIPPs performed slightly worse than expected, some decades later.
https://prospect.org/power/gamestop-mess-exposes-the-naked-short-selling-scam/
TLDR- Ted Kaufman, recently co-chair of Biden-Harris transition team, tried to curtail naked short selling of stocks years ago but wasn’t success because Big Money. He’s now uniquely positioned to enact meaningful change at a time of turmoil.