Capitalism only works in theory. While it might sound good in principle, the realities of human nature make it impractical as a way to organize an economic system.
I find it remarkable to note that not a single person, since, well, recorded history on the subject, has ever matched criticism of capitalism with a viable, well-tested and proven alternative. Perfect it is not. And yet, no other system in human history has elevated more people out of poverty than capitalism.
The “poverty” narrative a lie, a rehashing of the old “savages” narrative. It goes hand in hand with this idea that "poor" countries need the western world’s help. No they don’t. Has forced indebtedness helped them? No. And most of their people did not even get a say in the matter of becoming indebted. Advertising of nonprofits and the like is still littered with posters of white men kissing little black babies. It’s quite strange.
In fact, America as a culture is quite new and though it has many good qualities, seeds which can be watered to make for a better future, at present it has become especially barbaric, which is of course not news. These other “impoverished” countries generally have much more historic and developed cultures, ways of handling themselves, etc.
Also, it’s not like “capitalism” was proven and tested before “it” came to be. It has been an incredibly complex process. And it’s not that “it” even will be replaced at some single moment. It’s always a process, and this particular process is already underway.