IMO, the most dangerous Communists are the ones who have power, hence my bringing .govs into the picture.
Yes and where to the leftist governments come from if not from the leftist organizations?
The point is that BTC is so vulnerable now, that you dont even need a government to do it.
Just pick 1 poor country, an an evil organization that would agitate tens of thousands of poor people to download a malicious wallet and setup a communist node. They can do that with nothing stopping them.
The best defence you have now, is to ban the nodes from that country, but that is a very light defense, and they can use VPN.
to prevent communism (the rich holding all the wealth and the rich) splitting the network.
the op proposes
splitting the network and moving to PoS so that the rich hoard all the funds and control it all.
NO, that is disinformation
In a POS, everyone earns rewards relative to their % holding. So current miners will probably have the same market share.
If not everyone wants to vote or to run a node, then you can just have a delegation system, DPOS.
The point is that everyone can join the network, but only property holders can vote.
That is a simple requirement for capitalism. Otherwise the poor will outnumber the rich, and will vote left, always.
Rothbard and Mises knew this.