Yes, it's as stupid as it sounds.
He is suing a literal cartel after their crime was exposed in congress.
Yeah, congress "exposed" it, when it's right on their website (https://wfanet.org/leadership/garm/about-garm)
This is just another of Musk's "free speech for me, but not for you" lawsuits that never go anywhere and are designed to waste your money with lawyers.
Yes, it's as stupid as it sounds.