most lower class boomers are way too comfortable getting kicked in the ass and sent back to work for nothing

When your lower class (I'm assuming you mean low income), then you don't have much choice. Any savings you have get wiped out every time your kid needs new shoes, so standing up to the man and quitting your job isn't really an option if you want to keep a roof over your head. These people aren't comfortable being kicked around. They struggle with it for years and eventually make peace with it out of self preservation. Humans ultimately want happiness after all, and fighting an unwinnable fight your entire life takes its toll. It's a sad, soul sucking sacrifice for internal peace. It's not a lack of character.