Creeps want that. Anyone who wants to watch nonconsensual pornography is a creep. Much as rape is often about power more than sexual desire, I suspect many of these creeps want to see a politician they dislike in a degrading situation.

every aeroplane should be slung on a massive slingshot into the sky

Winch launching gliders is a thing.

It’s easy to find examples of homemade guns. Here’s a blog full of them: https://www.thefirearmblog.com/blog/author/improguns/

Most of them are made with crude metalworking, not 3D printing. Making a quality firearm is difficult; making one that goes bang most times the trigger is pulled is not.

Tell them to turn on fediverse sharing in the Threads account they already have.

I can already hear “No! Not like that!”. Fair enough, but that’s the thing most of your non-technical friends will actually do if you ask them. Be sure you have an account somewhere that can interact with it. Perhaps some will get interested enough to make accounts somewhere better.