What's your budget for this project? If you can out-spend the tourism board you can convince everyone your town is bad/the next town over is better.
You could also try making the town unpleasant by, say, opening a coal fired power plant or putting up hundreds of billboards for erectile dysfunction medications. But presumably you also want to live there?
Open up Synaptic, search up all the packages that say stuff about XFCE, mark them for removal, and then apply all the changes.