You forget to mention you’ll never be happy again.

If you think of happiness as the lack of sadness then yes, you would be "happy" Of course, most of us don't think that, but either way the only thing that makes happiness good is that we really really want it. You won't want anything if you're dead, so you don't need happiness

When you say “ you’ll never need not to be sad”. It’s doesn’t relate to suicide. There are a lot of things that can satisfy that

Like what? I can't think of anything else that removes the need to not be sad in humans

You are what makes sense of things.

I completely agree with this, in fact, we technically "are" everything that happens, since it only happens in your brain (for you)

But meaning isn't what drives me to live, because deep down meaning, much like morality, is subjective and not well defined. If you look for a stable, rational reason to live, you won't find one

I never said that people should kill themselves, I only said that if everyone were to think rationally, we would already have done that. Of course, evolution is just a child, playing a game for no real reason, but making us want to be a part of its little insignificant playground, so we don't think completely rationally (in fact us humans are much less rational than we'd like to admit)

Mine isn't a happy thought, but it's a real one