Why not get rid of corporations, or limit their size and independence? (i.e. no corporate personhood) Also enforce local ownership. Would not immediately solve those problems, but there'd be more of a chance for little guys to compete and start their own farming empires. It would also be much easier to lay blame at the few "robber barons" for buying up all the farmland and replacing farmers with robots. People could go and shame their rich neighbor instead of having to deal with a faceless corporation.

Until we can do small stuff like that there's no need to discuss going all the way to socialism. Doing so only empowers elites and politicians that benefit from promoting a fake revolution among the masses.