The Ethucan characters are being roleplayed to the fullest. If they are not convinced opening their borders to Valorn is in their best interests by your characters behavior, attitudes, etc, then Ethucan will not ever be opened. FYI. =) You control your own destiny here. These are foreigners with different beliefs, values, and history. Tread carefully... a few bad seeds could ruin it for all. Or maybe just themselves. Heck, it could just all be accidental. =D Faux Paux or whatever that goofy French word is. I don't speak French.
These people have been through a lot and live in a completely different place. It will take all YOUR roleplaying skills to remember you are a citizen of Valorn and that they are citizens of Ethucan, and to not slip into roles generated by your beliefs, values, and lifestyle in the Real World in America, Britain, or any other place.
That is, after all, what roleplaying is all about. I have no idea how this will turn out. I guess if worse comes to worse I won't have to build Ethucan. hehehe