In Communist and Marxist circles, two terms keep coming up: Proletariat and Bourgeoisie.
And at the heart of their ideology, it instills within its supporters 2 things. An underlying hatred for anything bourgeoisie-related (to be against anything they consider "pro-bourgeoisie" or "anti-proletariat"). As well as an underlying solidarity for anything proletariat-related (to be supportive of anything "pro-proletariat" or "anti-bourgeoisie").
While "black & white" "us vs them" mentalities have existed long before Karl Marx was ever born, the lack of grayness and intolerance of such mentalities can always lead to disaster.
With that in mind, it's then no wonder why people like Bernie Sanders (with his "fuck the rich" propositions) often take actions or propose legislation that could expressly be described as "anti-bourgeoisie" or "pro-proletariat" in nature. Even if not explicitly stated.
Whether or not you agree with such actions and legislation is not the point here, but necessary in understanding in what I'm about to say next.
If the 2 terms (proletariat/bourgeoisie) were originally meant to categorize people into 2 distinct groups (largely by economic/political status), then Cultural Marxism has since adopted these very terms and mindset in regards to categorizing people by their various "identities". The proletariat now being rebranded the "oppressed" and the bourgeoisie as the "oppressors".
This is why it's not unusual for feminists or lgbt people to be carrying around the hammer & sickle. Not because it's a leftist symbol, but because they legitimately do view themselves as the "proletariats" of their causes.
And sadly, as a result of such a mindset, the "fuck the rich" mentality then culturally translates to "fuck white people", "fuck all men", "fuck cis scum", "fuck straight people", and other such friendly outlooks.
But the discrimination is not a problem.
What IS a problem (and the end goal of Cultural Marxism) is when they gain power and start passing hate speech legislation and positive-discrimination measures. Both of which are often extremely biased against the "bourgeoisie/oppressor" groups & beneficial to "proletariat/oppressed" groups. Institutionalizing their discrimination into law, and causing division and friction among social groups.
Cultural Marxism has already permanently crippled every non-U.S. country out there (hate speech laws that punish anti-Muslim sentiments, no matter how many trucks kill them), and America itself is suffering heavily too.
Our American universities and private companies now implement the same draconian madness, and a large section of the populace (PEW study on the most censorous people: Democrats > then Independents > then Republicans) now set out to punish anything "politically incorrect".