The local landscaping contractor in NJ needs to contact his state reps in the legislature and demand lower state and local tax rates.
That is the solution; voters in high tax “blue” states demanding tax cuts.
What he will probably do is figure he might just as well vote for the Democrats. If you are going to get your taxes increased by the GOP you voted for all these years, you might as well vote for the Dems to get some goodies out of it.