Hedonism is the pursuit of pleasure: your pleasure.

Over-indexed on hedonism converts altruism into a self-serving glow: loving your child is for your own benefit, not theirs.

This discounts all the other motivations by collapsing them into one principle (selfish motivation), which requires mental two-stepping to validate your impulse to care.

(As humans, we are a multiplicity of drives and perspectives, many of which are social bonds, ideological impulses, and non-rational responsibility to others… which need not be reduced into a singular perspective.)