I don't know why you keep banging on about York, its a none starter for SL, they have never topped 15,000 for an attendance even when the game was at its post war peak.
I'm with you if you are going where i think. York is plenty big enough for a SL team and is not hemmed in at all but it has been stated on another similar post on here that there is no hinterland around York from which to draw support only empty agricultural areas. I think York, given many other criteria to be accomplised notwithstanding, is big enough populationwise for SL but that would be another rival to the big ten so it is an idea that cannot be allowed to have traction even on a RL forum
The demographics of the city are all wrong.