High level or not, at least you have a case if they started training in their native countries. It's different with Kyshenko and Adamchuk since they both grew up and trained in Ukraine before moving to the Netherlands.
I can't be assed arguing back and forth over the same thing and I said from the start in my first response, you might not consider Grigorian as #1 and would probably say it's Sittichai instead and might possibly want to count him as Armenian not Dutch. My initial response to you literally was "Marat Grigorian, unless you want to count him as Armenina, but he's basically a Dutch trained fighter. But then of course you can also say that Sittichai got that #1 spot."