You're right, he doesn't. The idea that somehow it is sensible, when you're seriously ill, to just abandon your entire support network for financial reasons makes next to no sense whatsoever. Thank you for sharing your story and I wish you all the best.

Any pronouncement beginning with "they should just..." is almost always born of ignorance.

Yes. From personal experience I've found people who readily offer "you should" fail to adequately investigate and listen to comphrehend important contextual factors and differing values. These might determine what is situationally positive or negative.

Advice that I've usually found more valuable was formatted as "here's an option and here are the possible pros and cons". These people also did more listening than 'should-ing'. They also didn't have the audacity to tell you what is best, which is implied by 'should', because they weren't in your shoes and neither completely informed of the context so how would they know what's best?