Yeah, that’s bullshit. You can tell by the fact that they don’t take down videos from big corporations when some nobody trolls with a fraudulent DMCA request. They only do it when it’s the other way around.
That’s a strawman argument. First of all, plenty of people would be happy to self-host a game for their friends, if they were still allowed the option. Second, even people who want to run a public server would still be free to ban people (for whatever reason they wanted). We’re not talking about being forced to tolerate antisocial fuckwads.
Size and/or shape. A gulf is bigger than a bay (e.g. compare the Gulf of Mexico to Tampa Bay), and a sound is more about the opening to the larger body of water than it is about the partially-enclosed body of water itself.