Then you probably love being called out on your false narrative that this is about girls playing varsity football, it isn't.
90% of males do suck at football. The numbers are easy to follow. That's why the few that are good move to the next level and leave the majority behind.
This really seems to boil down to you not liking how the men were portrayed. That's fine. I could see that. But bringing down the women or flag football isn't necessary to express that opinion.
The boys (not going to call them men since they were supposed to be high schoolers) were portrayed as idiotic, bigoted, and terrible at the one thing that they cared about which is football. That's just a bad message for high school boys. Can you imagine if there was an ad for ballet lessons that essentially featured some high school dudes just humiliating a bunch of girls for no reason and implying that they aren't good at anything?