@Wingnut, these are the normies who don't like Trump and are hypocrites about immigration. I feel mean for complaining, but three weeks unplanned is a long time for in-laws to visit.
If you stop feeding them, they'll go away.
Sell what you have and either join the TinyHouse movement, or live out of an RV... Or buy an off-grid homestead... They won't come in the first place.