Can you cite the reasons that these large countries are capable of building high speed rail while the US is not?
Where is the recent innovation in US air travel? It has gotten considerably worse over the last 30 years. Supersonic passenger flights stopped in 2003 around the same time that TSA added hours to every flight.
Should Acela be faster? Probably! But people should be clear-eyed about what the reality of the situation is.
Everyone should be mad that we dug this hole and then climbed out of it, but people shouldn't pretend that we're still in the hole.
Train stations and airports are where they are. Lots of them are quite close to downtowns. Others aren't. Nobody's changing their locations in existing large cities.
There are plenty of cities where the nearest airport is closer than the nearest long distance rail station. There are plenty of cities where they aren't.
Billy Bishop is pretty convenient, I think it's quite unusual in that respect. But for the same reason, it's rather controversial and limited in the airplanes it can take, and its future is often in doubt.