Question to Jeremy Corbyn

Obviously I'm not too fussed about Jeremy Corbyn, yes I know, I'm a Conservative; however he doesn't appear to know which way to turn. His deep rooted principals are one thing, but then reality bites and he realises that most people don't quite share his views, so he has to tone things down a bit. Mind you, you can't blame him, the membership of the Labour Party voted him in; whilst the Parliamentary Labour Party appear eager to stick the knife in, so to speak.
The thing is you can't always have your cake and eat it....
Jeremy Corbyn wanted Mohammed Emwazi (Jihadi John) arrested instead of being killed in an air strike (if reports of his demise are corroborated (Jihadi John's not Jezza's) ). However there is one question that only Jeremy could answer...How did you propose to arrest him if you were, and still are, opposed to troops on the ground? Because unless I am very much mistaken, a Star Trek style transportation system has yet to be developed.