Maybe it is a floating island of garbage? In fact, you probably think USA is a pile of garbage otherwise you would not live in Thailand while licking liberal boots.... and Thai boots for that matter.
Shouldn't Europe be this super duper well connected by train continent where you don't need Visas? I am sure it's simpler than to travel from Isaan to Bangkok for a procedure.
You can get a quick private medical care in Europe for a lot less money than in Thailand. If UK does not have this option, they could have travelled to countries in Europe that do.