It seems your strong reaction may stem from grappling with a crisis of meaning or purpose in your own life. The intensity of your judgments about others could signal unconscious projections of your inner turmoil.
When we lack meaning ourselves, we often project that void onto those around us. Their indifference seems to reflect or validate our inner nihilism. But this is a distortion - do not presume your inner despair is universal.
Meaning lost can be meaning found through new pursuits and values. Rather than condemn those unaffected by what troubles you, ask what purpose calls you. What potential still lies untapped within?
Face the pain of existence courageously, without blinding yourself to beauty outside your narrow struggles. Be the creator of your own significance, rather than resenting those who found theirs apart from you.
This is no easy task, and there may be a long road ahead. But with truth and perseverance, you can discover your unique path to a meaningful life. Do not project your bitterness onto others - instead build the foundations your purpose can stand upon.