I’d say a good middle ground could be making that stuff only visible from your mom’s user (or even setting up a completely separate server)?

It depends on what YOU want to do, really… personally, I would be ok hosting religious nonsense if asked, as long as it’s not generally available in kids’ accounts and stuff (also, porn), but I would come clean and outright refuse if it was neonazi,racist and/or conspiracy stuff. It depends on where you decide to draw the line.

BTW: there’s also the passive/aggressive, cowardly option of sayng “I’ll rip them when I have time” and then sequester all the DVDs and only ever find the time to rip the ones you don’t mind