This is a standard trope, not only in the redpill but also in self-help circles.

What do you make of it ?

I often think it's way of Gurus to make you keep follow them and consume their content. Now, finding a partner can't make you happy, so there's something you different you can look for. Some deep, spritual truth nobody knows except them.

The point is that it's not about happiness. Who said, you're looking for happiness if youre looking for a partner ? You're not looking for happiness, you're a social animal with an instinct, you want to couple up with a person so you both can enjoy each other intimately, romantically and personally. It doesn't matter how happy you are, you will still want that if you're single.