I think he meant we'd all be boot-clicking Nazis. 
From your posts, I know you'd be OK with that, but some of us out here actually appreciate our hard-won freedoms.
The land invasion of England is moot point, considering the Royal Air Force defeated the German Luftwaffe invasion of England, all thanks to Churchill's foresight and dogged determination building up England's air and ground forces as the war started. Hitler would never have sent in land troops without air support.