I'm not lecturing you. I'm telling you what you already said, and pointing out the seeming inconsistency therein.
If all this seems like I'm being a jerk, I apologize. I'm arguing with you, but I don't "mean" anything derogatory by it.
Some food for thought: how, excatly, is a cocked & locked, single action 1911 (since that is the most prevalent SA gun) less safe than a DA gun?
Both guns have a manual applied safety, depending on the model. Both guns have firing pin blocks, depending on the model. The 1911 also has a grip safety, on the outside chance that something could get in the trigger when you aren't holding the gun, causing it to go off.
Neither gun will fire if dropped. For either gun to go off, you have to pull the trigger... nothing else will really do. In the 1911, with the hammer cocked you'd need (a) a catastrophic mechanical failure in the trigger mechanism, (b) the half-cock notch to fail to intercept the hammer for some reason, and (c) the firing pin safety to fail for some reason. That is a pretty remarkably unlikely chain of events; hence, we can say that the hammer cocked per se does not present any mechanical "danger" compared to a DA semi-auto.
That leaves only trigger pull weight. Is a 5 pound trigger more dangerous than a 15 pound trigger? I'd say, "not if you keep your finger off the trigger when it doesn't belong there." Time to read up on the rules of firearms safety, maybe? The heavy initial trigger pull is probably more "safe" if the operator is careless, so you can reasonably argue that DA guns are "safer" for general issue in the military or police, where handgun training is often of poor quality.
If we are talking "tactical" (ug) considerations, you could argue it both ways. A DA gun WITHOUT an applied safety removes the need to work a safety to shoot the gun (think SigSauer P22x series), with the disadvantage that first DA shot... you could argue all day which is "worse" to deal with. But if you have an applied safety AND a hammer down DA gun, you are on the face of it slower to get into action than a SA gun, and the objective benefit is... a worse trigger pull? A more carelessness-tolerant weapon? With a DAO gun, you get the same advantage of the DA w/o manual safety, and the advantage of consistency, but of course ALL your trigger pulls are heavier (like a revolver).