I've run into, and because they're family, forced to deal with ugly people, A LOT! I understand how they can make you feel. And, yes, their toxic attitudes do fill a room with a kind of stench. Yes.
Remind yourself that their toxicity is their problem, their burden to try and work out. You can't fix them, you couldn't even if you had the help of a thousand psychiatrists working 'round the clock.
I've had to walk away, cut them off, and let them go. It's hard, but you must protect your own psyche.
Massive ((((huggggsss)))), and a cup of your favourite hot beverage, Fuzzy.