I see your short term beliefs for sure but wanted to add that I think the challenge is the balance between enduring beliefs and ones that we can change when needed.
For example - someone who grows up having experienced a negative situation with a particular group of people. Their beliefs are likely going to surround a disdain for them which may be right in some ways but not everyone in said group should be the victim of that hate. They meet someone or a group of people of that and are initially hostile but change their idea of them with these better outcomes and realize they just had a bad batch.
I think the reality is there are too many people who don’t have the capacity to change in that way when warranted. You see videos of it online all the time where the blue haired (generalization for effect) people are screaming at someone for something retarded and that ends up ruining many peoples opinions of them and they get written off whole cloth. In doing that they don’t have dialogue and it makes the situation worse. I think that then has a cascading effect to give those other people who have no solid beliefs for any length of time worse because nobody has any meaningful conversations with them.