They probably have data that these talking points have the best positive reaction rate for the area on average.

The fact that it didn't matter to you isn't important to them, it's the aggregate as that is the end goal. They may even disagree with it entirely and agree with your stance.

Yeah, I'm sure that's why the politician was selling those particular issues.

Those work, though, because you run into he same perspectives among Republican voters, because their media are telling them it's true and they don't bother to check (the ones who do, presumably, move away from identifying as Republicans the dozenth time they catch such an "error" in a given day of watching Fox).