The meat sack can only handle 8-9G’s and only some number of those. So, make missiles and drones that can outdo this and get them to go fast and the problem is reduced. Stealthy and fast might not be possible due to IR, and stealth might not work at all in optical wavelengths with any ambient light.
Ukraine might have demonstrated that smart, smaller weapons will or even have taken over the battlefield. And they brought down a stealth fighter with boring old flak in the Balkans decades ago.
There are already missiles that can pull 50-80Gs, most modern air-to-air missiles can pull over 20Gs easily.
Part of the issue is optimizing for weight/G pull, versus a high-sustain motor. A lightweight 50G missile has a very high P/K off the rail, but the longer it flies the harder it is to capitalize on your G rating. If the pilot notches it, you can potentially outrun the dangerous portion of the missile burn and force it into a sustained glide where the warhead is harmless.
Contrast this with other missile designs like the MBDA Meteor, which probably has a relatively low G pull. Much less maneuverable, but it also remains dangerous for much longer than even an AMRAAM. Optimizing for these kill envelopes is what you want, if shooting down MiGs is your goal. By the time you're close enough to fire a 50G missile, you've got a helmet-queued R-73 hot-and-ready delivered through your canopy.
Ukraine might have demonstrated that smart, smaller weapons will or even have taken over the battlefield. And they brought down a stealth fighter with boring old flak in the Balkans decades ago.