These groups are there because in California they can capture a larger portion of the effects of trickle-down than in North Carolina, Texas, or New York; and because the state-provided safety net, average people's compassion, and availability of human connections and capital allows them a small, but more meaningful chance of breaking out of the poverty trap.
This is correct. Warm winters is also a significant pull-factor.
This is correct. Warm winters is also a significant pull-factor.