That's why Oregon is between us and Cali. The only good route north is I-5, and they run into a whole bunch of nothing coming up the east side of the Cascades. Most of the immigrants would probably give up before crossing the wastelands.

Let Seattle and Portland deal with it. Rather, I would expect many of the displaced SoCalites would prefer to head for Vegas or Tahoe/Reno rather than out in the middle of the nowhere I call home now.