1. Sign up on their preferred social media platform with a sock puppet account. Decorate it in BLM pictures. Make the account mostly private.

2. Message them repeatedly telling them they're guilty of racism& need to have their stuff taken. Give explicit details like the town they live in, or the stores they visit. Bonus points if you can mention their actual property or job sight.

Like it or not we're in a cultural war right now. Suburban liberals aren't going to support their own comfort being threatened.

Obviously don't start breaking laws with real violent threats. Just mildly uncomfortable remarks. It will work.