We shouldn’t be so angry that we think something as broad/simple as a marketplace has no use, and should not even be attempted, in creating a sustainable society worth living in.
It looks like you are conflating market economy and capitalism. These are two different concepts, and the first one predates the second by a few millenia.
So in the end the question was about capitalism but you argued in favor of market economy.
Is it though ? Not saying it is inherently bad, but in itself it forces a market value on everything - which is a rather limited proxy to usage value. In that sense money in itself is not neutral, not “just a tool”, as it shapes how exchanges are made in a society.