Because geeks rule

It's cuz the geeks of then grew up to be parents and raised their kids with the geekiness

Because it's now in a medium that is much more broad, appealing and open to new users/viewers.

Because that deal I made with the devil.

Because it's hype and soon we will be the nerds again.

Because the geeks from then have money now and it has nothing to do with any form of altruistic recognition... it's about exploiting us for the investor's bottom line.

Is.
Is now mainstream.
"Everything" is be a collective noun, meaning what it covers is multiple, but itself is single.

We all knew nerds would take over the world. Through games and comics.