I guess I just don't get the question. Why would England go to the Channel? England's first goal is to ensure that he will get Norway, no ifs ands or buts. His second goal is to try to get Belgium through force, negotiation, or trickery. Going to the Channel seriously endangers his ability to ensure Norway and doesn't give him any better of a claim on Belgium than the North Sea does.
What England wants to play is Liverpool to Edinburgh, but he won't do so if he thinks you are going to move to the Channel yourself. But then again, why would you? Your goal is to get Spain and Portugal and maybe have an influence on Belgium.
There's no way that England is going to the Channel unless he thinks that Germany is with him. If you fear that, just ask Germany for a bounce and open Marseilles-Burgundy, Paris-Picardy, and Brest-MAO. Assuming that Germany really does go for the bounce, you'll have an army in Marseilles waiting to go to Spain, a fleet in MAO waiting to go to Portugal, and an army in Picardy to either cover Brest against the unlikely English invasion or to influence Belgium. Germany will be out of the running, that's for sure.
Or, if you favor an alliance with Germany, just offer Belgium to Germany. Tell him you have no interest in Belgium at all and invite him to take it. There would be no reason for Germany to invade Burgundy if he knows Belgium is his for the taking.