What if: The Battle of Britain/The Blitz never happen?

This is assuming that The Battle of The Atlantic still goes ahead to the same extent as is did in our timeline.

For this scenario, let's assume that Germany comes to the conclusion that gaining air superiority over Britain would be too costly (e.g British pilots that successfully bailed out could be recovered vs German pilots being killed or becoming POWs).

• If gaining air superiority for Operation: Sealion was a must, could an amassed German airforce (i.e sending everything at once whilst sending landing craft) overwhelm the RAF? Would Germany just outright abandon Sealion?
• How does this affect British morale? Growing up in the UK, we learnt a lot about The Blitz (I remember speaking to many Blitz survivors - even one last year) and I feel like as much as it led to many deaths, it definitely added to the "British defiance" feeling that people had back then. Similar to The Miracle of Dunkirk.
• How many aerial innovations came about, on both sides, as a result of one side trying to gain an advantage over the other in OTL?
• Generally, what affect on the outcome of the war would this have? More German pilots available for the Eastern Front/North Africa, but also more British pilots.