When I wrote to my MP (who simply forwarded the letter on to the Home Office), I got the same response.

"fair and balanced extradition arrangements with the US"

I'm sorry, what? These extradition arrangements are completely lopsided and need to be reformed.

Of course that's fine until the other country starts repackaging all crimes as "serious", which is arguably what's happening here - copyright after all, is usually civil and not criminal until huge scale is reached (and actually involves handling copyrighted material).