FCC bars providers for non-compliance with robocall protections

Good start. Next, put the people running these scam phone providers in jail.

How many are based in the US and subject to US-based prosecution?

Why can someone from outside the US make my phone ring? Why can't I opt out of calls sourced internationally? Seems like an easy way to fix the problem. There is no reason for anyone overseas to call me, and if someone US-based does phone spamming, we can prosecute them.

An easy way to "fix" the problem for closet dwelling US nerds like us who've decided we don't want to use the telephone anymore. Everyone else in the world isn't like us, and have to actually use their phones to talk to real people everywhere. Pretty much everyone has family abroad, etc... This just isn't a serious suggestion.

Which is why this is likely to end up getting rolled back. Surely most of these providers are dominated by spam. But equally surely all of them carry some legitimate traffic (or else this particular trigger would have been pulled already).

There will be friendly fire from this policy decision, almost certainly.