As to whether a Thousand-Year Reich would have been easier to live with than communism turned out to be, I have no particular desire to judge - it's sort of like deciding whether you want to put up with AIDS or the Black Plague. "Neither" is a perfectly acceptable answer, and "neither" is what we ended up with, no thanks at all to the isolationists such as Buchanan who would have had us put up with both.
Pat's exposition in the second half of the article rests on the assumption that Hitler's ambitions would have been sated by the destruction of Poland and a successful defeat of Stalin, leaving Western Europe untouched. Naive, imo.