All this to make a train which will arrive in London about 10 minutes quicker. Assuming it turns up on time or isn't on strike.
We should have just bought the tech to make a maglev/bullet train from Japan. The US is building one which will hit 700kph. That's a true high speed train, even though the tech is old now. HS2 is just a regular train TBH.
Do you have access to some alternative Wikipedia or something that's just completely wrong? Where do you come up with this stuff?