Yeah once people get something in their head, right or wrong, or ideological, it’s hard to change that.
I will say I don’t think it’s only society nowadays. Even back to the earliest civilizations, if something was believed as truth, humans still wouldn’t change their minds even as scholars literally proved them to be wrong as time went on. We accept a lot of those truths now (like earth isn’t flat) but despite a shit ton of evidence it took civilization a very long time to wrap its head around stuff that was contrary to their beliefs back in the day. Humans are stubborn creatures. Pros and cons to that stubbornness.