Nope. The California "high speed rail" project is a failed boondoggle already. Only a few tens of miles have been built in the middle of nowhere. Many of the physical routes have been changed from something sane and logical to just plain stupid so that certain travel time requirements in the government bids were met. I know of one town where they wanted to run it right down the middle of the town, killing dozens of businesses (some are manufacturing/processing and have EPA grandfathering and couldn't be moved elsewhere without going bankrupt due to idiotic regulations). This because putting it on the edge of town would add like 2 minutes. The train never has been "high-speed". The top speed is 85mph. It was just a conventional railroad. No new technology. And let’s not mention the various mountain ranges to cross or some of the largest earthquake faults in North America. How long would it take to repair an earthquake-caused break? Years? Regular tracks and roads can be measured in days. Or just fly over the problem!
No one wants the people rail but the kickback-receiving politicians. The rest of us can just get on a plane. There isn't a huge demand for SF-LA traffic anyway. The airlines handle it just fine. And you can already take the train there if you really want to, mostly tourists and it's a much prettier view than the inside of a tube. Remember SF is 500+km away from LA. Most people from LA consider going to SF and northern California like traveling to another state. Las Vegas is 200km closer and that’s a trip in itself! It's not like a maglev trip 15 miles away to the other side of town for your daily commute. You’d still have to drive an hour in traffic to the airport/suckport/blowport, go thru security for another hour, etc There would just be no demand. The LA area already has two commuter train systems which are somewhat usable, but since the LA area is 1000+ sq. miles, if you don't live near it, it is completely useless. It’s not like the NY subway where everything is crammed onto the tip of an island. (There are buses of course which not that many people use and are completely subsidized by the government.) So where is the suckport going to be? Probably nowhere convenient for 95% of people. The 5 or so major airports are much closer if you really need to go to SF and visit the poop and needle filled streets!