Against giant monsters they always do the same thing too, see Godzilla, lets hit with our Sidewinders and AMRAAMs from only a few hundred yards away so we can get swatted out of they sky him or blasted by his atomic breath all the while doing nothing more than annoying him. Why not launch these missiles from miles away, which they're perfectly capable of and something the size of Godzilla or a Pacific Rim kaiju is going to give both a nice heat signature as well as radar signature for the missiles to lock on to. You'll probably still only end up barely stinging the monster but at least you're not losing planes and pilots in the process. Once you learn that's not working you start gliding JDAMs from as far and as high as you can manage, I'd bet that most kaijus (Godzilla included) would feel the effects of multiple 500 - 1,000 lbs bombs hitting it.