When I say redistribution, I mean someone taking from one person and distributing what they took to others. In practical terms that means taxes and government programs. That centralizes power to the government to make decisions how redistribution happens and who benefits. Or so is the Libertarian argument.
The workers owning production is a bit more complex. I think most libertarians would point to the like of Soviet Communism where state power organized labor. Again, centralization. But private co-ops and such exist so I don’t think they can mark it across the the board.