That's his main claim to fame, and it's a good one.
Since then, however, he has drifted into some interesting precincts. Namely those inhabited by Buchanan and Sobran.
It must be true. 5% of all participants in any large human endeavor are very highly educated --- and certifiable.
Is that your way of whispering that Paul Craig Roberts is an antisemite?
He has an odd way of showing it, if he is.
After all, he just offered to take in 5,000,000 Israeli Jews en masse. Westbrook Pegler, a real antisemite, would have had a coronary.
If Roberts were the antisemite you seem to be trying to insinuate he is by association (with other real or imagined antisemites -- Bill Buckley found Sobran guilty of antisemitism and banished him from National Review, but the jury is still out on Buchanan: you can't fault him for disagreeing with AIPAC's agenda if he wants to), he would be quite enthusiastic about our supplying Israel with (some) weaponry, in hopes that they would then fight it out with (in round numbers) 1,000,000,000 Moslems, to the last man. The last of one or the other, anyway. Because they're all Semites -- both Arabs and Israelis.
I think you need another theory.