Most US Democrats think favorably of socialism, but not capitalism.

Capitalism and socialism are not mutually exclusive; they exist in a mix. What the US has today is a plutocratic form of capitalism which gives the rich the power to extinguish all the socialism, and that makes it unjust.

Under the anglo form of capitalism, which controls the US, Canada, Australia and UK, companies dominate the state so much that it lacks the power to stop companies from dragging civilization into the grave. China is more capable of this than the US is.