To be fair I’m sure if it was stylish to insert overt conservative themes into IPs those would be also too.

I don’t think progressivism is the problem. I think the problem is mediocre creators either deciding to turn an expensive IP into their own political soapbox, and executives giving it the green light because they either are completely disconnected to what makes a good product or thinks the culture war will allow them to pretend that bad products are good.