What difference does it make, your husband wants them in the house. Would you call your own parents ‘guests’ too if they lived with you? Would you constantly have to watch what you say with them around as well? You’ve already said it’s your home, you’ve already said that you help them out financially too…so why are you living like a guest in your own house?
You hardly mingle or talk (according to you) so how are they interfering in your daily life other than just being there and cooking ‘desi’ food?