Dems love Choo Choo trains which are the least efficient method of travel.
That is simply untrue. Trains work wonderfully in Japan and Europe - but that is because the transportation infrastructure is largely based on trains, so that you can actually get from point A (near where you live) to point B (work, shops) efficiently.
It doesn't work in the U.S. because our transportation infrastructure is based on the two car owning suburban family. The light rail line does not run through your neighborhood, and the village center with pub and food market is not just down the street from you.
It is a very different pattern of development. Running a high speed train from LA to SF is just a train between two points. It is not a transportation infrastructure with all necessary connecting modes. People don't live in walking distance of either terminus of that line.