to be fair, outside of politcal context materialism is a philosophical idea about there not being anything that is immaterial, and is very close tied to physicalism. you are using the term in a political context, hence the confusion on RyoQ's part i guess
Physicalism is a bit of a radical vision of that that can also take free-will into account and historical materialism is the political side.
Germany, Italy, and Japan lost WW2. Not those who funded them, as much of Hitler's war regime was funded by American Business interests (see Bush's granddaddy selling war supplies to them if you want a place to start, then move up to J. P. Morgan and the Business Plot https://en.wikipedia.org/wiki/Business_Plot )
The true evil moved to the USA and Isfake, and they've never stopped spreading their terrorism.
The true evil moved to the USA and Isfake, and they've never stopped spreading their terrorism.

No, materialism cannot account for consciousness (at least consciousness in terms of being able to engage in self reflection).
We are a biological and social machine. We - or our consciousness and brain - do not escape the material reality of our world.
Ethics aren't possible if you are a materialist either since ethics require universals and form-matter distinction
Ethics, while coming from an idealist, take contextual informations into account and not a biased universality. It's more robust.
And since ethics usually push us to understand the world of structure, consequences and context, it's a sub form of political materialism.