"I checked into the quote, and discovered that it was given by Aldous Huxley, Julian Huxley’s brother. Not quite in the same context, but here is the quote:
“For myself, the philosophy of meaninglessness was essentially an instrument of liberation, sexual and political.”"
This had nothing to do with evolution. This is also a misquote. It's also in a book arguing AGAINST nihilism. Aldous Huxley was not an atheist. Nor was he ever a scientist. Your claim that,
"As can be demonstrated, early evolutionary theorists confessed that they were not drawn to the idea of secularist evolution because of any scientific merit, but rather because of its implications in morality."
is still unsubstantiated. We are waiting for some documentation.