The reason I didn't feel the need to reply to every sentence in turn was because...
I was the one who made a car reference, and it had nothing to do with manufacture or any such comparison (though I think you would be surprised how many safety standards toy companies in particular are responsible for, they are irrelevant here).
What I said was:
1) Some people say, "This doesn't matter, it's minor, it's not a big deal". Just like someone might say about a small scratch in a car.
2) When the car collects all kinds of scratches, all those little scratches add up to a larger problem, because while on their own they are "just a scratch", together they add up to some real visible damage.
That's how I compare it to this line. This line is like a scratched up car. If this stuff didn't happen with alarming regularity, yes, it would just be a "minor" issue. But when the little dings just keep happening, over and over, it's going to try just about anyone's patience and most can't help but see the scratched car for what it is, in spite of the fact it's all made up of "just a scratch".