Whatever your basis for morality is, there is no evidence that that should be the basis for morality.
First, yes, there is. My basis for saying murder is wrong is the reasonable fact that it causes unnecessary suffering, which is a bad thing. Also, it stems from the reasonable fact that generally people don't want to be murdered, and you can see that treating others as you'd want to be treated is a good way to go.
Second, You're confusing believing something exists with believing something is right or wrong. Judging things good, bad, ugly, right or wrong is not the same thing as trying to figure out whether something exists.
Hope is necessary for a healthy humanity(which was my first argument, not that it was necessary in general).
Again, no, it's not, but then that's not really relevant. Hope and faith are completely different things.
It does not matter what definition of evidence is in use for me to quibble about making distinction between those ideas lacking evidence and those lacking enough evidence.
Actually it does matter. If you're using an accurate definition, your quibble is not warranted.
That is arguable
I think I could make a fair argument that humans are as rapacious, brutish, murderous, greedy, etc. as ever.
You could, but you'd be wrong.