If, say, the FA put a limit or cap on the number of foreign players in a club, then any English players who are half decent would probably hike their fees straight after boot camp and only become affordable to foreign clubs.
Ok, we might get to see a decent England side once every two or three years, but the premiership could be reduced to a 22 sacks of lego bricks chasing a whoopie cushion around a field. A bit like watching Gillingham vs Port Vale.
Premiership supporters want to see flashy good foreign primadonnas. Anything less would mean they are not getting value for their �1,000 per annum season ticket.