It's a class war, but many boomers are scabs.
Remember when there was a worker shortage and retired boomers went and volunteered at chain restaurants so they wouldn't have to raise wages to attract workers? Remember all the "millennials are so entitled, they want to be PAID FOR WORK" style posts by boomers, back when some non-boomers still used Facebook so we had access to their posts?
It's not their fault they've been brainwashed by right-wing propaganda, but they for sure are fighting against anything resembling economic justice.
And obviously much like any generation, you can't make sweeping statements about them. There are right-wing nutters in their 20s and even their teens out there right now and there are obviously boomers who aren't selfish assholes.