I get what you're saying. I've discussed it at length with people from all over the political spectrum in work today and it's unanimous that Conservatives will be (or should be) face palming today after that quote. Nothing about it, or him, is genuine or believable at all. He's gone from saying everything is on the table, to you could hand it us on a platter and we wouldn't want it. He's been given a brief to back track and as he does with everything he's triple jumped past the mark.
I know people will find an issue with anything Trump says and in their eyes, he can't win, but what I'm suggesting here isn't a stretch. He's exaggerated comments to make a point and I feel it's done the opposite.
Regarding your last line, I've said it before but I don't expect to see wholesale chunks of the NHS sold off to the point that any man, woman or child on the street knows it's happening. That doesn't mean it won't be done. Also, Trumps said it, Johnson's said it and every Tory says it aren't compelling statements given there are a list of blatant lies I could reel off without blinking.