However, when you want to enforce your own convictions on other people, that is where the true issue lays.
No I wouldn't want to force anything onto people. When did I say that?
These are, after all, just hypothetical thoughts right? If you don't feel the same way it's still all good. Greed is the dominating instinct in our society and the reason capitalism is so "successful". Nobody wants to share. Because it is their right not to as you say.
Capitalism is a good economic policy, but it is a broad term. There are many different forms of capitalist policies, and throughout most of the world today, it is a mixed capitalism market. Pretty much every industrialized nation uses capitalism. Greed isn't the prevailing factor, it's private ownership, or the right of an individual to obtain wealth through the market.