That's a very wrong metaphor. A supplying league is not by definition a one-team league. France may currently be dominated by Lyon but is by no means a supplying league, with more and more players coming to France instead of moving away. The level of play in France is very high, very skilled (there are more technical skills on display than in the Serie A, which is a more physical league).
Holland, on the other hand, is a definite supplying league. However, not remotely a one team league. PSV's dominance for the past two seasons is a rare phenomenon in the Eredivisie and with AZ Alkmaar gaining strength, there are now four teams who could all beat each other on any given day.
Also: the Ligue 1 is much, much stronger than the Eredivisie. Putting them on the same level is very wrong. France are currently ranked 4th and Italy might well lose their second place to their Northwestern neighours if current developments continue (Italy are already virtually 3rd, with England having a better record). Holland, are ranked 7th, battling Portugal for the 6th position.