The way they went about getting their point across isn't great but that said, there are legitimate reasons why you don't see everyone leave for another country even if that is exactly what they want to do. Especially if you are someone that struggles to survive here let alone put away a few grand to cover the expenses of moving to another country, do the planning and research needed, tie up loose ends etc. Living abroad may be good for neurodiverse people but the actual process of leaving the US and settling elsewhere as a permanent resident is not.