I love how you switch from ‘class struggle’ to ‘class warfare’ in the middle of your post. You’s a sneaky one, you is.
As for goalposts, I came in to this thread speaking specifically about Marx’ formulation regarding the revolutionary reconstitution of society or the common ruin of the contending classes. It should have been pretty clear from the get-go to anyone willing to pay enough attention where the goalposts were. They only seem to be moving because you’re running some crazy-ass patterns down the field.
Class struggle does not automatically involve the lowest classes in society, especially when they are not politically conscious enough to organize in their own interests. There were more than two classes in Athenian society, but there were only two that were able to set the social agenda of the age. One class had political and economic power, another one didn’t but was organized enough to fight for it. Two classes out of several fighting for power - class struggle. Same thing for the French, English, and American revolutions. There was the monarchy, the increasingly politically and economically powerful bourgeoisie, and other classes like farmers, peasants, and the beginnings of what would become the modern working class. The monarchy had the power, the bourgeoisie was strong enough and organized enough to make a bid for power - class against class. Class struggle.
Only now, under capitalism, has the world divided into only two classes. This is where it becomes impossible (and politically backward) to leave out sections of the working class in the struggle for power. Any struggle in which an oppressed section of the world’s population fights for its rights needs to involve ever wider sections of the working class, and thus such fights become part of the class struggle. Roe v. Wade wasn’t just popular sentiment; it was demonstrations and meetings and organizing and actually taking action to make sure abortion became legal in America. It involved working men and working women demanding rights from a government that wasn’t willing to grant them unless absolutely forced to. Class struggle.