Moving generally sucks. Moving is traumatic whether it is forced or not and whether a migrant or not. It can be almost the same trauma when moving to the other side of a large city as moving to another country. Kids still change schools; spouses still change jobs; housing and community changes; distance to friends and family changes interactions; etc
At least a migrant has the option of returning to their home country with a network of family and old friends; natives are stuck jobless and with high cost of living or choosing to uproot and migrate to a new country with lower cost of living, becoming migrants themselves. There is no stress-free ride for anyone.