I'm pretty sure that was just one crazy Jєω and not a theory of the Jєωs.
You're correct in that most Jєωs won't openly say it in such a blunt manner - they usually think these kind of thoughts.
I hope Trad Guy asked a follow up question. The question would be "Hey, no credit at all for saving the Jєωs from Hitler's Death Camps? I mean, honestly, if it wasn't for the English and the Americans, Hitler would have killed even more." That would be a question to ask the guy.
Sometimes, especially online, people will engage in posturing where they say inflammatory things to get a rise out of others. However, what Trad Guy says is in line with Jєωιѕн thinking. If you don't believe this, go to a Jєωιѕн bookstore, look for an Artscroll Edition of the Chumash and an Artscroll Edition of the commentary on the Psalms and read through the commentary for the general mindset.
Having said this, I want to conclude that a small portion of Jєωs are actually on the decent side, although how could someone who orders their life in contradiction to Our Lord be considered "decent" I have yet to figure out.