Coordinating millions of people to pump a stock so that a short squeeze will occur is very different from you doing it on your own.
Pump and Dump schemes have been illegal forever. This is no different.
Pump and Dump schemes have been illegal forever. This is no different.
Furthermore, if you're arguing that it's illegal because it's done in group, then I don't understand what legal basis you are using for that. I also don't understand why you'd say it's "very different" from doing it on your own. I can't think of anything else off the top of my head that legal to do on your own, but illegal in group (some things are more illegal in a group, but that's not what we're talking about)