Is that so? Have you forgotten what happened with Hara Hara Mahadeva? It ended abruptly. Why? Two reasons: 1. They were copying the entire original serial frame by frame. If you don't believe me, check out the episodes on Disney plus hotstar.
2. The original was full of costly, high quality VFX which only Hindi serials can afford. If you try to make one in a regional language, you have to empty all your pockets. The producers of HHM faced that hurdle and ultimately it was ended abruptly. Even in Bengali when Nazar was remade, it escalated costs and was pulled off air.
I'm not saying that you should dub all serials. But serials with high quality and costly VFX should be dubbed in Kannada. That's the point.