The joke is that pride is one of the seven deadly sins, not really pride in the sense of LGBTQI+. It's more a pun, maybe a tone deaf one, but this is a shitpost community
There is a German novel where something like this happens over night for no reason. It's called "Miami Punk" and worth a read but I'm afraid there are no translations. It's written by an anthropologist and he investigates the question how people would react, including people out of work, conspiracy theories, scientists, ...
At some point the kid will talk to other kids and find out they don't attend school on weekends either. Unless they hate school that much that they don't socialize with other kids which would be worrying as well
We are waiting for Chess 2.0 since literal centuries