The first part is all true. But I don't "need" a superior entity. It would certainly be nice to have one (especially if this God wasn't an insecure, self-centered ***hole like most of the monotheistic world's ones) but if I need one I'm SOOL because there isn't a big papa with an infinite warm embrace. I even agree though that it might be adaptive to believe there is... to a point.
See the thing is, the fact that I don't know myself fully along with my loneliness & isolation pushes me to interact with my fellow human beings. It's been said "hell is other people" & that is certainly true but so is heaven.
What we need is not some cosmic teddy bear to cling to when we're sad or a cosmic gps to follow blindly when we're lost. We need to be able to get along with, learn from & create a better world with our fellow man.
You think "God" is going to solve climate change? War? Poverty? Any form of human misery or self-destruction? Of course not. Only contentious man can do that (or die trying).
We will never fully know or understand ourselves or the universe. Instead of being insecure about that & inventing stories to make us feel more secure let us band together & do the best we can with what we have for the good of all.