I think this is a real case of [citation needed]. Many people will, rightly, point at a myriad of statistics to demonstrate how this can't be true, and that's fine. But, I think we can just use some common sense; what are we talking about? There is no way this is true. Why would even need an immigration policy if this was true? This is just some kind anti-Americanism or anti-capitalism nonsense; that is really the only explanation for such an assertion that I can surmise. I'm also not really sure why working in tech you would be "constant fear of needing healthcare". If that is true then if nothing else the placebo of effect of moving to Europe may have been the best treatment psychologically, certainly cheaper than seeing a therapist.