If the real motive is profit, then open source models are likely simply not a viable means to that end.
If huggingface or whatever is forced to take down open source licensed weights, there’s always bittorrent.
Export controls are one thing, but the US doesn’t really have import controls, and there’s no copyright issue, so DMCA, etc don’t come into play.
It’d take the courts years to decide how to contort the law to ban open weight models, and by then, it’ll be too late (and also pointless).
But that's the whole point.
Fall out of favor with the admin and you lose access to the good American models, aren't allowed to use Chinese ones, and fall prey to the attackers and behind your competitors.
Which would be fine, but as we know, people securitize the crap out of their investments these days, and least some people probably leveraged themselves on some US AI companies, so now the risk is spreading outside of the sector to the economy in general, which is made worse by the sheer amount of spending on AI.