John Bain repeatedly quit social media participation due to flipping his shit over things way less terrifying than risking losing his insurance coverage to lifetime caps and being unable to get new coverage due to having terminal cancer. He knows the NHS isn't going to pay for experimental treatments for his terminal cancer.
On this subject, I'll give Bain a partial pass. Guy does have terminal cancer and has a not entirely unreasonable fear Trump and a Republican Congress will rip the current medical system to shreds, which is currently working in his favor, and since it's literally Bain's ass on the line, at least his salt is based on something he actually has a cause to melt down over.
But, it's still ridiculous even so because there will be some time before he has to worry about that happening, and Congress does not just snap it's fingers and make changes at anything resembling a speedy pace most of the time, and even if they do pull the trigger, it would take time to put into full effect, so he's still going a bit overboard regardless.