My point is that San Diegans overwhelmingly elect Republicans at a local level that far exceeds the rate at which they elect Democrats. I understand many of the examples I listed are not adjusted for population. However, the poster I quoted claimed that SD county is now "liberal." And, when you look at all of the publicly elected officials that serve SD county, it's incredibly hard to substantiate that argument.
The county board of supervisors, which is voted on via 5 districts within the county, doesn't have a single Democratic member, nor has it ever had a Democrat serve as chair in its entire history. The most Democratic leaning district(s) in the county didn't send a Democrat -- even the district that includes SD city (1.4M people), which the poster I quoted claimed was "liberal."
In regards to the CA legislature, I was only pointing out that it's a little strange for a liberal county to be sending more Republicans to Sacramento than not. There are counties in CA that sent no Republicans to the legislature, and, IMO, it would be accurate to label those counties as being liberal. But, again, SD county still sends more Republicans to the CA legislature than it does Democrats -- not a particular hallmark of a liberal county.
Again, my only point is that it's absurd to call SD county liberal. Yes, at a Federal/National level it's fairly safe to assume that SD county will lean blue (hence its purple designation). However, at a local level, voting trends have really only shifted from solid red to pink.
This also doesn't even consider more nuanced views of the actual politics in SD county. Republicans at the county level are substantially different than what many would assume of a typical Republican at the National/Federal level. And this is also true of Democrats. Moderate politics is still alive and well in SD county, and both parties represent that mindset.