Never take the Daily Mail, or many other British newspapers, at face value. They have been known to make shit up. The MMR vaccine scare is an example. This is not to say the NHS doesn't have awful flaws or these stories are implausible but I'm regarding this as bullshit until it's examined on BBC 2's Newsnight, by The Times or by the The Guardian.
What is really bizarre is that the Americans are describing the flaws with British healthcare when the proposed system is more like the Swiss! It is the existing VA system that is like the British model, not the proposed one. Unless someone tells me VA healthcare is a disaster, are the Americans really this dense that they denigrate the WRONG model?