Take a breath. Read it again. If you still don't understand something, think about what it is you don't understand, then state your issue clearly so I can help you.
I'm not sure what to tell you. It didn't make sense. It doesn't make sense. There was nothing technical about what you wrote. Other people don't need to confirm that something doesn't make sense to me. I'm not making a claim, I'm telling you that it didn't make sense. What do you not understand about this?
I'm not trying to insult you or dispute what you wrote. I'm just telling you, again, that it does not make sense.
You keep repeating that all OpenBSD tries to do is audit to find bugs, but that is very obviously not all that they do to prevent exploitation and post-exploitation issues. I'm not sure why you keep doing that. This is one of the parts that doesn't make sense to me.
You say that unveil or pledge aren't enough or aren't as good as SELinux. There is nothing technical about saying that. That's just your opinion that others do not share. I'm not even commenting on whether or not I agree or disagree with you about that. However, you aren't making a point in expressing this opinion. That's something else that doesn't make sense to me.
So, do you want to try to explain what point you're trying to make again? The whole thing. All I'm getting from the things you're saying is that you love SELinux and you have almost no understanding of any other aspect of what OpenBSD does beyond auditing code.