No, it's not a stretch. They define rules in their Community Guidelines, which seem reasonable and user-friendly. But then they all at once terminate a fair bunch of accounts that had existed for 10 years, contained thousands of videos, and always strictly followed their Community Guidelines with no explanation. How is that called?
Well, it just shows what monster the service and the monopoly behind that started with a "Don't be evil" policy has become over the years.
> How is that called?
It's called business, and unfortunately you have no path of recourse. When someone gives you something for free, they are not compelled to keep providing it freely. That's how American regulation works, and those are the rules YouTube plays by.
It stinks, but it's a good lesson to not trust other people with information you value.
That's a stretch. You agreed to Google's EULA, if you thought that was "inhumane" then you shouldn't have signed up for the service in the first place. What happened to you is unfortunate, but part of your agreement. If you don't want it to happen again, host it yourself.
P.S.: The landing page for "Creative Society" looks like a total scam (a-la Spirit Science) and if I was a YouTube moderator I would have probably flagged related content for review too. I'm sure you mean well, but this site just screams 'pyramid scheme' to me.