I randomly got this Youtube channel recommended to me the other day, something about narcissists and their tactics against people. His creepy, eyeless baby avatar was immediately off-putting, as was his accent (fucking anglos). But, the thing that interested me were the titles of his other videos.
Here he says that you should not respect religious beliefs at all, for all the same reasons you've heard from the other euphorics.
And in this video he actually addresses Secular Humanism at around 9 minutes in.