Bill Buckley was a long-time member of the Council on Foreign Relations. The Council on Foreign Relations is a rank disgrace but there is no question that most folks who want to play a serious role in foreign policy are likely to belong and less likely to agree with CFR.
Also the ritual use of the term "globalist" bespeaks a Bircher mindset. Buckley and Whittaker Chambers read the JBS out of the conservative movement nearly 60 years ago. The JBS has done nothing to rehabilitate itself since.