I have, as a non-socialist, no problem with criticism of the NHS, although some of it from America verges on the silly and bizarre.
What I DO object to is the characterisation of Scottish and British healthcare and hospitals as backward. Many reading your post have never and will never visit Britain, let alone be in a NHS hospital or seek British healthcare. So you have a responsibility to make fair but uncrude characterisations.
As for your points, British doctors and nurses still have fine worldwide reputation, and Britain has in fact been at the forefront of medical advances and innovation since the NHS came to be in 1948.
Name something that rivals oh liver or heart or kidney transplants. Something on the order of MRI and CT machines. Laser and endoscopic devices.
I have been to the UK plenty have friends and family who live there. Will take US hospitals ANY day of the week