Those who are concerned is implying that any new distribution mechanism is not going to favour them.

And under the capitalist system, if nothing changes, the "new" distribution system is indeed not going to favour them - at best there would be some sort of UBI, and at worst you would be left to starve in the streets.

However, i cannot see how one can transition to a new system, and yet have the existing powers in the current system agree and not be disadvantaged.