You kind of prove the point though - we still use 7.3 billion barrels of oil per year or whatever it is because we haven't built the high speed rail. This isn't China and we prefer to spend money on welfare rather than infrastructure. Mind you the US does have an extensive and advanced rail system but it's mostly used for freight.
Again you are right that dependence on oil is a problem with a solution but it's in nobody's interest to solve that problem right now. There have been some baby steps toward infrastructure investment in recent years like building more chip factories in the USA (since Covid) but that is likely because they see us as being in a war with China eventually, and it became a national security issue.

