One thing I never understood was why the heavy bombers were sent in perpendicular to the coast with orders to wait 30 seconds after crossing the coast before dropping their loads. Doing so put a lot of holes in cow pastures and the cows therein but did nothing to destroy beach obstacles and provide holes for cover.
I would have figured to send them in fairly low, 10 or 15 thousand feet or so in long columns three abreast and parallel to the coast. They cross the channel and then turn parallel to the coast when they reach it. Once a particular column had made their turn and was fully over the beach, the column leader calls "bombs away" and they all drop simultaneously. Maybe use waves of medium bombers, B-25's and 26's, doing the same thing an hour before the landing.
I know night bombing is tricky but the Brits would use Mosquitoes as pathfinders to mark targets with incendiaries, seems like they could have found some way to give the bombers visual clues to their targets.
They could have done that up and down the coast for a few weeks without giving away the location of the attack, the Germans would figure they were just weaken beach defenses all over. Then make a big raid on Normandy the early morning of June 6th. 20/20 hindsight, I know, but the way they did it sure seemed like a total waste of the bombers.
They did get it fairly right at the breakout, concentrating thousands of bombs on one small concentrated area and pretty well pulverizing every square inch of that area.
Jim, your logic is right but carries knowledge of bombing techniques developed since. Bombing technique and accuracy was extremely crude at the time. Much of the saturation bombing you mention at the break out fell short of the German lines and even though the US troops had pulled back 1200 yards nearly 700 US troops were casualties of US bombs.
The reason the bombers did not want to bomb pallallel with the front line at that time was to reduce time exposed to ground fire concentrated along the line. That may have had something to do with why they didn't want to bomb parallel to the beach. It was a mess. Some paratroopers before dawn on June 6 were dropped as much as 20 miles off target. It was a mess with crude equipment and communication compared to today but our far-from-ideal state of the art attack beat the other side's far-from-ideal defense.
Will add that the comment by the acquaintance given in the original post reveals incredible ignorance on the part of the commenter.
Due to surprise in location and timing, except for Omaha the other beaches were relatively lightly defended. At Omaha they were unlucky enough to have missed intel that Rommel had moved a German division up where they expected a battalion.
Re aircraft carrier: Little need to risk such a ship when airfields in Britain were minutes of flight time away. Plus Admiral King hurt the Normandy invasion by hoarding equipment such as landing craft for the Pacific, and likely did the same with carriers. Real life, real people, real mess.
Oops. Typing while others answered.