Do one of the following:

1. Tell your mother you’re not comfortable hosting that type of content as a non-believer.
2. Lie and hand back the propaganda movies and say you couldn’t rip them to some unknown rip protecting they use and there’s not enough resources online to figure it out.
3. Host the content and let your mother liver her life and don’t say anything.

I’d personally use option 1, but you do you.