There are an awful lot of bad assumptions here. A MiG-31 doing Mach 2.5+ in a dive and shallow turn from high altitude will do more to cause a missile problems than an aircraft at low altitude pulling 9g. The time factor is being ignored.

If the move is performed right, the MiG will be flying across the path of the missile almost perpendicular at Mach 2.5+. That isn’t an easy intercept at all. It puts a serious burden on the missile’s tracking, turning and energy reserves.

long range missiles would normally be optimized for…long range, meaning comparably smaller fins for less drag,
but in turn this increase wing load which make the missile less maneuverable,
guessing those large long range missiles have in the order of 3 times the wing load of short range missiles
designed to engage other fighters.

But they’re twice as fast. 2^2 = 4.

wow, thats like double guarantee that AESA cant get detected isnt it ?

It can be detected but it’s more difficult, and very difficult to use more complicated precision detection on it, like interferometry, and I don’t see any way of effectively jamming it without either telepathy or espionage to steal the frequency swapping algorithm.

P&W found a fix for F-135. Fix your own conclusions…
http://mobile.defensenews.com/article/308280040

Maybe we should buy a crappy Rafale, or not, that’s my conclusion. I’m going with “not”.

With equal radar technology, I wouldn’t bet against the MiG-31.

http://thediplomat.com/2014/08/the-f-35-vs-the-vhf-threat/

if a VHF radar after modification only manage to detect F-117 at about 37 miles , how could you expect a L-band or xband radar to do any better

L-Band is still below the RAM’s optimal frequency range and I imagine that better target discrimination and more up-to-date processing (vs a ’60s/’70s radar) all play a part. Only source I have sorry. It’s worth remembering that SAMs having always proven more lethal to fighters than enemy fighters ever since their introduction. Stealth is primarily intended to defeat fighter X-Band and targeting radar but life is not a box of chocolates and radars are improving. It still offers a very important advantage in reducing lethal ranges and improving the potential of jamming but don’t expect perfection.