Name another professional football club any where in Europe that can only cater for 3.3% of its conurbation and that of its immediate catchment, say a 10 mile radius without competing with other professional football clubs?
There isnt any and if there was it would soon be rectified.
Sixfields is not fit for purpose in its present state, all these non league clubs you refer to, dont have the same issues that hold us back.
Cheltenham given that Gloucester is 9.1 miles away. Northampton population 2,011 was 215,713 with Sixfields capacity 7,750. Cheltenham and Gloucester 231,924 population for same period with a smaller ground capacity of 7,066, hope this helps?