Hmm. Interesting proposition. I've heard a few say the same but without explaining their reasoning. Now I have a new site to research a little sometime, thanks.
Personally, though...sometimes I can only really shrug at things like this. What matters to me is that right now the people we refer to as Israeli Jews are fleecing us. The ancient distinctions don't really matter as much to me. Perhaps checking the rest of the site will herald some kind of understanding that changes my outlook. Generally though, this kinda thing is so out of my own understanding and I grew up so flooded with pro-juden religious dogma that I'm more inclined to reject all the religious arguments.