I'm currently in the process of switching from YouTube to Piped and was getting fed up with rewriting YouTube links myself. I finally found an extension that can do this with a relatively easy setup:
Thought maybe more people might find this interesting. My setup is in the pic.
Edit: @[email protected] Just suggested using LibRedirect which is even better than Redirector. Also since Redirector isn't really maintained anymore.
Teaching how to do it safely might save their ass. And your own if they pirate at home.