Biggest problem with your theory is the RAF was not about to be beaten. Hugh Dowding was brilliant and the English use of RADAR was perhaps the saving grace over Germany’s superiority in number of aircraft.
A deciding factor was perhaps the change from bombing and strafing the small British airfields and swinging the concentration of German attacks onto bombing London, known as the Blitz. This allowed the Brits to gain time and control of the skies. Some British airfields were never discovered by the Germans.
Considered the first AIR WAR,the Battle of Britain is an incredible history of courage and the right person at the hed of the RAF.
The RAF was days away from crumbling. If Germany’s veteran pilots on the eastern front had been instead fighting against GB then things might have been different. Of course, all things may have changes if Goering hadn’t been in charge of the Luftwaffe. But speculation is just speculation. If an asteroid had hit the earth then, we’d all have died and cockroaches would conquer the planet. :)