Royalist,
I feel your pain, but I think you might be getting this terribly out of proportion. Think of the thousands of UK/US MOUs are, and have been, in place and have served us both extremely well. Perhaps you've just been unlucky in your experiences, your words certainly don't reflect mine.
LoneWolf's words ring true to me.
Edit to add: To be more specific, either signatory to this agreement would be able to veto an unwelcome deployment. The ship won't go anywhere the UK doesn't wish it to, the jets won't operate anywhere the US doesn't what them to. Plus the obvious support issues.