Interestingly, Democrats have historically had an advantage in the lower income brackets over Republicans. There’s a tipping point for the ultra wealthy to swing back to Democrat. This article is a bit older, but it’s useful to predate Trump and a bit of the weirdness that has brought with party lines (although my brief search says it still tends to be this way). The wedge issue is much more likely the point of policies like this to get the single issue voters support.

npr.org/…/how-income-divides-democrats-republican…