I'm saying that helicopters are more fragile, period. It doesn't matter whether you are testing that via consequences of weapons damage. Or counting the number of failure-critial moving parts. Or digging through flight-safety statistics. Or computer modeling the effects of the sudden loss of the outer 1/4 of one [wing|rotor blade]. Or getting quotes on life insurance for a career pilot. Or asking a savvy fortune teller.
> So you're saying that fixed wing airliners are better than helicopter airliners because shooting them down requires larger missiles?
Yes, it not only increases the barrier to entry for attackers but airlines can install some defenses against MANPADS since they're easier to counteract than more advanced missiles. Some Israeli companies have developed and certified flare based anti-MANPADS systems like Flight Guard and laser based ones like C-MUSIC, though I don't think airlines have widely deployed them yet.
Once they're at cruising altitude, man portable AA can't bring them down.
These shoot downs are such uncommon events that it makes no sense to judge passenger aircraft by them. You may as well say that helicopters are better because, not using runways, they avoid a repeat Tenerife scenario.
Any consideration like this is completely washed out by practical/economic considerations; how much money can you make operating an airline with either kind of aircraft, and what kind of capabilities do they provide? This is why fixed wing aircraft are almost always better, except when the particular capabilities of helicopters invoke their use.
I think what they're saying is that you can't easily target a fixed-wing aircraft flying miles above ground with hand-held equipment like you would a helicopter
Either of these are such fringe scenarios, it doesn't make sense to judge either whole class of aircraft by this type of incident.