Aren't the super-rich, persistently, demonstrating their belief in socialism?
Examples include:
* They pay memberships to exclusive clubs. They are therefore paying taxes towards their community. If they didn't believe in socialism, they would simply pay an entrance fee each time they attended.
* They live in gated communities, for which they pay residents' fees. So the only difference between that and regular socialism is in scale, i.e. the latter works at the national, not micro, level.
* They (corporations) form cartels to prevent mutually damaging competition, which would harm their income. Surely that's the same as unions negotiating deals, e.g. collective bargaining, to keep things fair and stable for all their members.