Why the poor should be communist by /biz/

Capitalist argue:
>life is unfair deal with poverty and shove it up your ass

If that is the case why should the poor not rebel? If poverty is okay why is the expropriation of the bourgeoisie not okay?

Capitalist argue:
>muh natural rights, muh property is sacred, human nature
These are all concepts with not real proof.
Capitalist argue:
>humans are naturally greedy, communism relies on everyone being an angel
if humans are naturally greedy, why should the poor not play their role and revolt and be greedy? There is also the fact that laborers are not being greedy by not revolting, which means people are okay with sharing their labor.

Capitalist argue:
>Communism leads to an unelected unaccountable elite
How is that different from capitalism? Workers don't vote for their supervisors or their bosses, the power over someone's economic activity is no small deal. Workers today live under a system where they have to submit to others in order to have an income. At least in communism they auto-manage.

capitalist argue:
>capitalism has lifted millions out of poverty, and communism creates poverty
If you are poor in capitalism then capitalism has failed you and a communist revolution at least brings the hope of a better system decided by the poor revolting class.

There are literally people in this world who have nothing to lose but their chains.