pulled from another site. you are delusional if you think it was more difficult to win back then.
"As a result, in the 32 years from the 1947 PGA Championship to the 1979 PGA Championship, except for Gary Player, there was only one major played in the US that was won by a non-American --- the 1970 US Open, won by Tony Jacklin.
Similarly, hardly any Americans played in the British Open. When Gary Player won in 1959, there wasn't a single American star in the field. There were three players from the US, but they were not serious contenders. The best of the three was a 48-year-old amateur, who missed the cut by three shots.
The Big Three of Arnie, Jack, and Gary racked up five British Open wins between 1959 and 1968, and there were less than a dozen Americans in the field in any of them. There were only half a dozen in 1961, Arnie's first win, including two guys over 50 and an amateur. And since travel to Scotland was just as difficult from South Africa or Australia as it was from the US, it's probable that many top golfers from those countries skipped the Open as well."