I get to pretend for a little while that things are OK. All of the songs are really happy. I think I get wrapped up in the nostalgia and remember being a kid.
Someone already mentioned going to HR or talking to your boss, but if you really want to shut it down just call her out on her bullshit. Make her explain her position and ask followup questions until she can't respond. She's just parroting some talking head, and you can even make a game out of trying to figure out which one she's channeling