I had a similar experience, took a friend in for about a year after he lost his job. He just spiraled deeper into depression, I burned a ton of social capital trying to get him out of the house to make friends. He spray painted things on my patio without putting down a drop cloth, broke things inside the house, constantly complained about how crappy or small my house was, while never paying a penny towards it. He was just constantly grumpy and rude, and was completely shocked when I asked him to move out. He kept saying how it was good for him to live with me and just couldn’t conceive that it was awful for me.
Best way I’ve seen to explain solar power and EVs to a right winger is tell them I don’t have to fill my car with expensive Saudi oil, I make good clean American electricity when the sun hits my roof and I use it to drive around. If oil was worthless because we have better forms of power, we could stop caring what some Arab princes think we should be paying to drive to work.