Is this "Citizens United" running for President? Obviously neither is running for president. But collective groups of people may wish to support certain causes

Is this "Citizens United" running for President? Obviously neither is running for president. But collective groups of people may wish to support certain causes, bills, or even candidates who support such things. Do I prevent all collectives of people — and since everyone's favorite punching bag is the evil corporation — including non-profits and unions (which is what the original case was about!) — from spending money? And I'll distill this down to what I said to the other commenter: assume we do, and no political money from anyone except individuals. Is it not just Bezos and Musk who can afford the ad, whereas I'm left without a voice?