As far as I know, Minecraft itself is avaliable for download publicly, you don’t even need to patch it to play. You just need to supply it some fake account data and tell it to work offline.
No official servers support, of course, but that’s about it.
The funny thing is, this mechanism came from Mojang, and at this point they can’t even do anything about it. If they stop providing downloads without an account or implement some anti-piracy features, people will just use the latest official version and mod it. And it may be not even the latest one, there are tons of players on 1.7.10 and 1.12.2, just because modders love them.
Sure, they can try and push their Bedrock version… But nobody is playing on that piece of crap.