The PRC's long-term high speed rail progress.

Do you think the PRC has high speed rail because of "slave labor?" What on Earth are you talking about?

Do you know which country built its railways by actual Chinese slave labour? USA.

For some reason it is always projection, even in such a completely unlikely case as this one.

Then the states should have a huge high speed rail system, since we have the largest available slave population in the world.