I love electronic renditions of classical music. Trance does this often (Tiesto, Armin van Buuren, William Orbit, Ferry Corsten and others) and it's some of the best work they put out. To me, it's like a natural progression from classical minimalism, such as Phillip Glass or Max Richter.

I've played the violin since I was a kid (only for fun now). I can find something I love about almost any musical genre and I'm sure I'm not the only one.

BT is a trance dj that's classically trained: https://en.wikipedia.org/wiki/BT_(musician) and Armin van Buuren has classically trained parents

https://m.youtube.com/watch?v=6yFanGv_ReU

https://m.youtube.com/watch?v=S1YwlPH_o50

https://m.youtube.com/watch?v=j2fNloJAge0 (same chord progression as la folia https://m.youtube.com/watch?v=7v8zxoEoA_Q)

La folia itself has been "remixed" many times by both classical and modern composers https://en.wikipedia.org/wiki/Folia

Remixing art has been done since the invention of art. It doesn't ruin anything if the original work is preserved.

No one is required to like it. But the word 'hate' is a bit extreme, even in your example. Also, the group comprising "the classical music fans" is certain to include many who disagree with you.

He is a very influential artist in the techno subculture. I don't think anybody hating him for making those masterpieces...