Let me Google this for you.

Cuck. In which cuck is used in much the way I describe. Interestingly there are a lot of women profiles posting in accordance with the stereotype. I wonder if this is a parody or if it's entryism. I'm sure some of them are sincere. If you want an actual far right person using 'cuck' in a similar way look at this use of cuckservative. Sorry for linking to a far right blog.

Snowflake. In which snowflake is used in much the way I describe.
Eg:

Replying to @ThomasNovth @realDonaldTrump
@ThomasNovth needs to re-think what it means to be an American. STOP DEMONIZING REPUBLICANS AND START SUPPORTING AMERICAN VALUES- #snowflake

Also 'quit being a victim, #snowflake'.

For discussion of SJWs, look at this bollocks. Contains choice picks like:

Most people who get offended are somewhat retarded, and the only remedy is offending them. #SJW #PoliticalCorrectness

. You can see it's pretty similar to snowflake. The equivocation between 'snowflake' and 'SJW' is something I didn't write about in my OP, but it's pretty easy to notice.

For cultural Marxism, look at this , has things like:

If you're fed a steady diet of #CulturalMarxism, which is what "African-Americanism" essentially is, it takes nothing short of divine intervention to avoid this PERPETUAL VICTIM mindset. That's why @UnhyphenAmerica stands against the cancer of Leftism.

and 'let's see what we can call racist today, healthy food!'. It's such a broadly appplied trope even Wikipedia documents it.

For the perception of identity politics, this is reasonably representative.