Asshats who use the term "Boomer" don't seem to understand that it means people born about 10 years after WWII and use it for anyone older than they are, so MTV term "genX" gets swamped.
Boomer is a frame of mind and enough Gen Xers fit that frame of mind to get the label.
You wouldn't be catching strays if Musk wasn't Gen X, some of the worst people in our congress were Gen X like Missouri Senator Josh Hawley, and outside of congress idiots like Governor Ron DeSantis are Gen X. Gen X is nearly 40% of the House Representatives and a quarter of the Senate.
Some of the most fucked up assholes on the political landscape today are Gen X so they deserve the "Boomer" label.
Originally calling everyone old a "Boomer" was a reaction to older people calling everyone who was young "Millennials" even when millennials were now in their late 30's