>>40928744 (OP)
Trauma. Neurological damage from T. Society. Etc.
>>40928766
Sweety mental illness is just anything that impedes function that originates from the mind (as opposed to something that originates in the body).
Sometimes it's caused by hormones (anxiety vs diabetes), sometimes it's caused by trauma (personality disorders vs amputation), sometimes it's caused by society (isolation vs starvation).
Having a mental illness is not your fault, recognizing a mental illness is the first part of finding an effective treatment for it. This makes you a happier healthy and more productive person.
>>40928847
So care. You've identified a social failing, you've recognized the harm that apathy can achieve, so fill that gap and be the one who cares for others as you wish you'd been cared for. Go do a degree in social work, get involved, use your experience to connect with other victims and help them through their experiences.
Look for Intentional Peer Support training and let's build the better world you clearly wish for together.