I don't think that phrase means what she thinks it means
What she also seems to forget when she points out that Superman used to fight for "truth, justice and the American way" is that she and her racist internet clones don't seem to understand what the "American way" really is.
Return with me now to those thrilling days of yesteryear. First, the New York Times:
(I)n fall 1942, fans of the radio show became the first to hear about Superman's battle for "truth, justice and the American way."Somehow that doesn't sound like Michelle's version of the "American way."
At that time the war in Europe was not going well. Field Marshal Erwin Rommel was sweeping across Africa, and the German Army was driving toward Stalingrad. The Japanese had been turned back at Midway but they were still invading Pacific islands. We were all fighting for the American way. Why shouldn't Superman?
As the war turned in our favor, though, the additional phrase didn't seem as necessary. By 1944 it was gone, and for the remainder of the radio show, Superman devoted himself to the fight for tolerance — as in the 1946 episode, "Unity House," in which Superman battles the Ku Klux Klan.
More about the Klan show here.