Why not both? Create safe districts, moving the real election to the primary stage, and then give the electorate a doomscrolling-device as their primary inform

Why not both? Create safe districts, moving the real election to the primary stage, and then give the electorate a doomscrolling-device as their primary information source. So the primary voters become more radical and paranoid and we wind up with growing proportion of fringe candidates who would lose to a dog if only they weren't safe seats.