When we study Marx in my graduate social theory course, it never fails that at least one student will say (approximately), "Class struggle didn't escalate in the way Marx expected. In modern capitalist societies class struggle has disappeared. So isn't it clear that Marx was wrong and his ideas are of little value today?"
I respond by challenging the premise that class struggle has disappeared. On the contrary, I say that class struggle is going on all the time in every major institution of society. One just has to learn how to recognize it.
One needn't embrace the labor theory of value to understand that employers try to increase profits by keeping wages down and getting as much work as possible out of their employees. As the saying goes, every successful capitalist knows what a Marxist knows; they just apply the knowledge differently.
Workers' desire for better pay and benefits, safe working conditions, and control over their own time puts them at odds with employers. Class struggle in this sense hasn't gone away. In fact, it's inherent in the relationship between capitalist employer and employee. What varies is how aggressively and overtly each side fights for its interests.
Colin Woodard suggests that we've been vastly oversimplifying things by talking about America's internal divisions between red states and blue states, between "the coasts" and the "heartland," between the urban and the rural or even the North, South, Midwest and West. Instead, the veteran journalist slices North America (sans Mexico from Tampico south) into eleven culturally distinct regions that look something like a continentally gerrymandered map gone wild.