Is videos only for diamond subscribers?

Ive tried watching the videos but they all seem to be only for diamond subscribers

It's unfortunate, yes, for the videos here be exclusive to payed accounts. However, there are still tons of free videos across sites like YouTube that can be even a little bit helpful (especially for a noob like me).

I'm currently skimming the videos from GothamChess and ChessVibes to see if I can pick up a tip or two for my still terrible games. 

You’re not missing out on anything special. Even with a gold membership I rarely watch the videos so I cannot imagine the time wasted with a diamond membership.

I find watching videos more entertainment than the educational value since they don’t significantly improve your game vs playing and analyzing games.

I'm a gold member and videos are locked for me

Only available to diamond, but there is a list of free videos every member can watch:

The Best Collection of Free Chess Videos - Chess.com