Freedom of Political Speech and right of assembly go together....
That is precisely what a PAC is....assembled people making Political speech.
However,
These restrictions upon our government to infringe upon these rights applies only for Citizens....not foreigners and not "entities". It is solely for groups of citizens....peoples. church groups, old lady quilting clubs, gardeners, farmers, veterans and etc.
Both groups of Black&Dark money PACs, and international Corporations are NOT Citizens of this nation. They are not people.
ACT Blue....not a legal PAC with the literally hundreds of millions in offshore banks of dark and black money.
Mom's Against Abortions (MAA) However....very much legal.