It's not either or - Fighter, Coastal, Bomber; nor uniform v civilian. My mother was bombed in London, 8/40: her flatmate did not, she did emerge from the rubble. If...the Few had failed and the Hun had attempted to land in Kent... firstly RN/Dover would have a word (so that's why an author pooh-pooh'ed Spitfires recently and a cartoonist misrepresented his point with a sketch of RN in the sky); but much more relevantly, all the way up the A20 my mother and the rest would have tried to "take one with you". Her bread knife was sharpened for the purpose of being thrust into one Hun. His mate would have killed her, but there were 40 Mn more where she came from.
(When next you see assertions that dropping nukes on Nippon was a war crime, contemplate that same point: each Japanese mother was ready to do the same thing).