I think this sounds a little like it's viewed through a lens of survivor bias.
If the UK had made a success of HS2 (difficult to imagine with governments in much of living memory, but let's sidestep all of that) then it could have been claimed, perhaps with some merit, that the UK was able to do something with rail infrastructure that the Swiss could never because they were hamstrung by their approach.
If the UK had made a success of HS2 (difficult to imagine with governments in much of living memory, but let's sidestep all of that) then it could have been claimed, perhaps with some merit, that the UK was able to do something with rail infrastructure that the Swiss could never because they were hamstrung by their approach.