I respect your decision and your position, but don’t agree with your characterizations.
I can’t speak for Zuckerberg, but I can speak for myself.
You are offering a false choice in terms of “either you are in denial or protecting your investments”. It’s possible that I’m in denial, but it’s also possible that I simply have more optimism about what Facebook can/will do to improve things.
It’s entirely possible that I am proven wrong and my optimism is misguided — but we don’t know that for a fact yet.