Ahh so we arent talking moderate in the political sense at all, MLK when he spoke of "white moderates" in this quote clearly was not talking in terms of political spectrum.
In fact when MLK did speak of parties he made quite clear he himself was a centrist:
“I don’t think the Republican Party is a party full of the almighty God, nor is the Democratic Party. They both have weaknesses. And I’m not inextricably bound to either party.” -- MLK Jr.
What are you on about. The damage to global warming is largely perpetuated by non-moderates. For example the alt-right, one of the least moderate political categories is also the most aggressive against green policies.
Likewise, thankfully there isnt much communism left, but when it was more common communism was likewise one of the worst offenders of mother nature.
@freemo @Miriamm
How about in the sense that MLK used it when he said that the "great stumbling block in the stride toward freedom is not the White Citizen's Council-er or the Ku Klux Klanner, but the white moderate."