I’ve discussed that with you before .In addition to that Newsweek quote, Eisenhower made similar statements in two places, in 1948 (CRUSADE IN EUROPE, p. 443) and 1963 (MANDATE FOR CHANGE, as cited above). The 1963 account (as was even more true of the 1963 Newsweek article) was more detailed and more colorful than the first. In the 1948, but not the 1963 account , Eisenhower added “My views were merely personal and immediate reactions, they were not based on any analysis of the subject”. If so, indeed.
Eisenhower had no particular insight into the Pacific theater, nor should he have. As far as is known, he had no access to Pacific Theater Magic or Ultra, either as traffic or summary. Nor should he have. In a 12 July 1945 letter he wrote that he had not the slightest idea what would happen in the Pacific, nor was there any reason he should. He was the ETO commander.
Whether Eisenhower was opposed to the use of the bomb, personally, is certainly probable. His accounts of how and when he expressed his opinions are dubious. Your reading for this would be Newman/WEAPONS OF VICTORY, esp.pp. 121-124, though the entire book would do you good. Maybe. For icing, HIROSHIMA IN HISTORY (ed. Maddux), pp. 7-23. And (perhaps you missed it when you went through DOWNFALL), there 's Frank’s notes on pp. 332-334
.But Eisenhower’s opinions were of no matter. The issue was what actions would result in the fewest casualties, and end the war, at the time, not what Eisenhower said he thought of it. The persons making the decision were those with both the responsibility and the information best suited to make the decision. Eisenhower had neither, as he said in in the cited letter.
As I said, you keep doing this, I’ll keep doing the same.