Earlier quoted context omitted.
People don't want to have to care about anyone else. They are so burdened with looking out for themselves they only see caring about anyone else as just another burden that they shouldn't have to bear, instead of seeing it as an avenue of shared and thus relieved burden. So, any excuse to make it so they don't have to care about any other misfortune than their own.
Humans are social animals. How do you reconcile that?
If you don't mind getting analytical, what about today, in your life, is different about today than other days? Just curious. My day has been the same as others, good sleep, waking up easily, tasks in line for the day, no coffee, so I am willing to assume something about your life patterns today is bringing you under my nose.