By Capitalism I mean the economic system based on the capitalist mode of production (capitalist/worker relationship), profit, and resrouces, labor and capital being commodified and market based (goods and services markets are in many systems, not unique to capitalism).
Here's is why any christian should not be pro Capitalist.
The scriptures over and over again condemn greed, and love of money, Capitalism with its basis in neccesity on ever growing profit doesn't just allow greed it REQUIRES greed, it mandates it.
Agape love which is love based on principle rather than emotion, which is the basis of christianity, would make the christian oppose Capitalism, since capitalism is based on mandated selfishness, and mandated competition rather than cooperation.
The christian ethic demands cooperativeness, seeking of common welfare, and so on, so a christian society would want to encourage those ethics, and discourage greed, selfishness, profiteering and externalizing, thus making Capitalism incompatible with the Christian ethic.
Property rights were ALWAYS secondary in scripture to the general welfare and individual welfare, going back to the mosaic law to the Jerusalem Church, given that Capitalism puts property rights above all else, and persuit of profit above all else its incompatible.
The capitalist/labor exploitative relationship is condemned over and over and over agian in the scripture.
Any system that is 100% based on profiteering, constant accumulation of capital, exploitation and commodification of EVERYTHING (thus leaving nothing sacred) should be abhorant to christians, as it was for many christians when capitalism started, as it was for the early christian church.
If Christians want to live in a christian society, step 1 is opposing the capitalist economic system.