I hate people who are optimists. I just want to burst their bubbles for fun
What's wrong with wanting a better future?
It's just a really unrealistic view of the world and they should stop.
I get that you want to have a more grounded view of things and that's fine but just because someone is optimistic doesn't give you the right to intentionally bring them down. Let them look forward to things that may or may not happen and deal with the consequences of their expectations.
You're just a pessimist who can't imagine a brighter future.
That is totally the opposite of what I've just said.