"TOPIC: Are the current air safety regulations enough to prevent, or at least minimize deaths in airplane disasters?"
Just my 2 cents, but I think the above topic (a good one, mind you) and the 6 support points you mention are not in context with each other--apples and oranges, said another way...
Some of the support points I can agree with as general statements (excluding #4). Most of them don't directly involve safety and regulations (as in FARs), per se, but are perhaps more related to valid traffic, airspace, customer service, and infrastructure issues. The various entities involved may well have "regulations" of sorts (procedures, programs, etc.), but again, their correlation with "safety" is a little longer a stretch.
As far as Part 121 domestic/flag airline flight operations themselves go, my personal opinion is that the existing FARs (and company regulations) themselves are just fine--the problem exsists in the awareness, application, and compliance aspects by some personnel.
For example, FAR 121.563 states, in essence, that if an aircraft system malfunctions in-flight, the PIC is supposed to ensure that the irregularity gets entered into the logbook at/by the end of that flight. Some write-ups end up grounding aircraft where they sit, which is particularly inconvenient if no parts and company mechanics are there. To prevent this from occurring, *some* crews have been known to not write stuff up and "carry" the item until they get to someplace where repairs can be accomplished with less muss and fuss. There are all sorts of psychological reasons why this occurs, and it's another "human factors" issue.
Now, if an accident/incident resulted from the inop system's failure (because it was needed), it'd be difficult to assess that more regulations were needed to "solve" the problem, versus compliance with existing regs already on the books.
Sometime a few weeks after the Valujet crash in the 'Glades, NTSB Member John Goglia was quoted saying something to the effect of: "We relay upon the moral character of everyone involved with the system to ensure safety" and I think he was dead on. Just as some folks perceive "truth" as telling lie but not getting caught, so too do some believe that ignoring a reg/policy and having nothing adverse happen proves that it was "safe."
Does blowing through an active school zone at 110mph (and not killing a kid) demonstrate "luck" or "safety"?
ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.