Dude, you’ve been called out for bullshitting and caught in a lie - which is right there, for everyone to see - and you have no response, other than to say that I’m full of shit.
You never tried to meet in the middle. You just tried to reframe, once again, claiming I was misinterpreting you. If you really meant ‘light grey’, why did you bullshit about supposed issues with dark grey and ‘black is always black’ rather than clarify? Here’s a guess: You knew you weren’t misintepreted, but when your initial response was picked apart, you thought you could lie your way out - because the alternative was admitting to being wrong, and that’s beyond your capability.
And no, I don’t mind wasting some more time to set the record straight on a public forum. But since it’s now clear to all that you’ve been arguing in bad faith all along, there really is no need to continue.
This just seems like hand-wringing for the pitiful state of the rail system in the USA. A country can have many dense population centres separated by large distances, making HSR viable and worthwhile, but still have low population density overall - just like the USA. The only real obstacle is political will/public support.
Western China has around half the population density of the USA but is already served by a 1,900km HSR line.