every behavior can be argued to be dumb

[MVP]

example:

doing crime is dumb, since risk cannot fully be eliminated and u might land in jail
making money is dumb cuz working for it makes u feel bad and costs time
Studying hard is dumb because life is short; not studying is dumb because future-you pays the price.
Taking risks is dumb because you might fail; playing it safe is dumb because you miss opportunities.
Acting in self-interest is dumb because it harms others; acting altruistically is dumb because you’re being exploited.
approaching women is dumb cuz rejection is inevitable and hurts
not approaching women is dumb cuz u will remain incel


etc
etc

everything has pros and cons

no matter what u do i can present u cons o doing it, i can argue it is dumb