Isekai would be easy, because they could just start Isekai'ing them into browner worlds. Its actually the most likely to be subverted because its inherent nature lends it to Woke settings if one so chose. It could even have progressive politics running in the background of its kingdoms and just tossed around like its no thing to begin the gradual zeitgeist change around it.

While we know there are tons of little differences, I don't think those matter as much as the cultural desire from those categories broadly. It wouldn't be hard to keep those up in isekai while also bleeding in Woke shit.

I mean, Japan already has people thinking about "chocolate waifus" from various fantasy and isekai works that could easily just become black instead of dark elves to push narratives.