Yeah I “de-thatched” my parents basement by filling up an enormous dumpster of shit. Literally things like “oh here are 9 CRT monitors that will never be used” etc. objectively it improved the basement and usability at zero opportunity cost. But it didn’t make them happier at all. My conclusion was better to let them do as they wish. I fortunately don’t have to live amidst the debris. (The basement has since then swelled to full capacity and spilled into two disgusting permanent tents outside).