In the old days 'real' pilots didn't use oxygen either
You have evidence to back up such a stupid comment? In what way do you consider the RAF to be amateurish?
The RAF's fighter pilots have always known about G tolerance - and it has nothing to do with gel haired gym queen poseurs making people scuttle about in response to beeping noises. It comes with training, experience and practice.
As a 30 year old fart during my refresher TWU course on the Hawk at Chivenor, I used to get the better of the young Turks during 1 v 1 base height brawls by application of knowledge, experience and low cunning. And the only routine exercise I got was walking from the huts to the mess and the squadron each day.....