The legal grounds: it is ok when we do it. This is just old fashioned piracy, but of course you’ll try to justify it.

What can the Russian government realistically do to me?

My government is the one that can ruin my life.

Unfortunately, this is gonna happen and worse. We lost the fight for the internet in 2006, and we’re watching it die. No joke, I started using yandex browser and search since Google ruined theirs, and it is close to perfect. Waterfox is my backup.