It isn't, though. An economic system isn't supposed to "take care" of every household. It's there as a framework to facilitate work and trade.
Ok, that such is only your subjective opinion aside, capitalism fails at your criterion too, and people die as a result of that. Capitalism is a system which requires there to be unemployment; when there isn't unemployment, wages rise until there is. Capitalists don't like this much, so they typically make sure that doesn't happen in the first place*: the more unemployment, the stronger the negotiating position of employers, and capitalism gives the employer all the power to dictate terms and policy. So much for facilitating work.
But like, in all seriousness, all those things weren't communism AND communism is still a hateful horrible idea.
The idea that people ought not to be divided into one class that works and another that owns and becomes entitled to the surplus value produced by others' labor through that ownership is neither hateful nor horrible. The opposite is anti-human.
edit: aww, they got rid of footnotes?
*avoiding this in the southern United States was a crucial motivation for the transatlantic slave trade, for example
