Most spam and robocalling are not done from burner phones they are done through websites of which the FCC is fully aware. This seems like it's more about monitoring people's activities and preventing anyone without a Real ID from even getting a crappy burner phone.
Sim farms are also a thing used by threat actors.
They're a low cost way of building out robo-call infrastructure. But this does nothing to prevent malicious actors from getting their hands on cheap hardware.
Yep. Just another means to control the populace and extract more money out of them.
Look at programs like MethCheck, putting pseudoephedrine products behind the counter and putting a limit on purchasing...requiring ID to purchase.
So now we've got: