An optimistic cynic is someone who balances optimistic and cynical tendencies. Cynicism can help people avoid naivety and understand how situations are unfolding, while optimism can help people avoid losing hope.
Some say that neither optimism nor cynicism is accurate or objective, and that life is a mix of good, bad, and neutral events. Others say that optimism is idealistic and can lead to "toxic positivity" that ignores negative emotions, while hope acknowledges those emotions and can lead to action.
I say "fuck that" because the world is bound to disappoint you somehow. But if you don't have any hope or optimism, that thought is going to grind you to a pulp.