Maybe at the tail end of their service, but when we got the CF-101s in 1961 they were competitive against the only likely threat, that of unescorted Soviet bombers - a threat that for the most part dissappeered into the 1980s with the advent of ICBMs.You can't be serious. Had something actually happened back then, those Voodoos would have been lawn darts.
If a force of Soviet bombers enters Canadian airspace in the 1960s or early 1970s the two most likely NORAD interceptors to meet them would be the CF-101 or the USAF's F-106. Either one will do fine, especially if using the AIR-2. How exactly will the CF-101 end up as lawn darts in their intended NORAD role?
The only time Canada has needed a multi-role fighter like the CF-18 has been when we've got involved in other people's wars. Balkans, Iraq, Libya, etc. I sometimes think the air force pushed for these deployments so that they'd have something to do with their jets.