Find out what matters to them - then do everything legally possible to destroy it...
Don’t forget the UK has no written constitution. They can restrict protests and freedoms if they want but it’s not a popular thing to do.
Unless you make the laws very specific and narrow to them.
“Find out what matters to them - then do everything legally possible to destroy it...”
Find out where they live.
Break/destroy anything in there that looks like it might mean something to them... photos, electronics, music, DVDs, books, financial records, etc.
Shoe on other foot make for an appropriate fit!