I guess I consider dysfunctional families to be part of the injustice of our society. As you say, anxiety is the default state, it's there to keep us alive. So

I guess I consider dysfunctional families to be part of the injustice of our society. As you say, anxiety is the default state, it's there to keep us alive. So we should blame the family for not being nurturing or the culture for not helping individuals learn how to deal with life, rather than blaming the individual or saying they have some disorder. Low self-esteem isn't advantageous. But getting anxious or depressed when life isn't working out I would suggest actually is advantageous. Being at the lower end of a bell curve doesn't make something a disorder.