Need advice about envious, spiteful, toxic in-laws?

Do as you're doing in keeping as much distance between you & them. You do NOT have to accept the unacceptable & just be grateful you don't have to see them on a regular basis. That's at least one blessing you do have. Try not to feed on their hate & dissension within their family. Consider the sources & ignore their remarks. Their day too will come as what goes around DOES in fact come back around. One day they'll get everything they dished out rite back on them. Be thankful your husband doesn't take after them. You got the BEST one out of the bunch. Accentuate the positive, eliminate the negative & be thankful you do have a happy life...the best to you...:)