if I make some art and aomeone puts it online, some multibillion dollar games house should be able to grab it and use it in their game for free

Is that what you think we're talking about, directly copying artwork? There's already laws for that, regardless of who or what creates the art. What is concerning people is that AI can be trained on other people's art and then told to create new art. It's not a copy, it's a new thing, but it used old stuff to come up with the new stuff. (humans do this too)

I'm sure the Reddit admins agree with you.

I don't even know what this means.

Edit: I don't know if this needs to be said but I am not the original person you replied to.