People put themselves first to one degree or another. What Mamdani is doing, what Socialism does, is
force altruism--
al·tru·ism
[ˈaltrʊɪz(ə)m]
noun
altruism (noun)
- selfless concern for the well-being of others, without care for one's own interests; unselfishness:
--on people who don't see it as altruistic. Instead of people responding by accepting having this forced on them, they respond by finding ways to avoid it. That's just human nature.
If you want a "fairer" system, then increase reliance on personal responsibility rather than use government to play Robin Hood.