The biggest political consequence of this plan is that it would add 4 additional democratic senate seats.
For this reason, I can't see this plan proceeding though congress.
For this reason, I can't see this plan proceeding though congress.
But I agree with you that this plan has no chance.
https://en.wikipedia.org/wiki/United_States_Senate_election_...
Edit: I was curious so I ran the math. It's super close, but republicans barely win. In 2012, Republicans scored 1,786,934 votes in green counties. Democrats scored 1,774,135 votes. That places republicans winning by 12,799 votes or with 50.18% of the vote.
That makes the new "Southern California" a swing state.