It has and is being bred for. It’s know as hygienic behaviour. Results vary and it’s far from perfect.

You can interrupt whatever that varroa are doing with icing sugar. You shake a cup of bees with icing sugar in there. Anything above 2-3 varroa per cup of bees is the standard treatment threshold. It’s horrifying to see 15 fall off a cup of bees from a strong, healthy looking hive. Varroa are awful.

I’ve just noticed that for first pic in that article is labeled with a scale saying ‘200mm’ presumably it’s supposed to be .2mm (I cant get Greek on my phone).