You're funny. Humans surpassing the master race in technological prowess? You guys invented the Mako, which is somehow worse in 2183 than a WW2 era tank.
Salarians are all gonna get eaten by Krogan. Quarian immune systems came back anyway, thanks to our Geth servants, or did you not finish the game?
http://img3.wikia.no...ian_Profile.png
We also invented Arc Pistol, Reegar, Arc Nades and GI. Meanwhile, humans are still making Mako's for ME4 and invented the shuriken.
I could defend the Mako, but instead I would like to know what equivalent machine you made that surpasses it.
If Krogans eat Salarians Krogans will eat all other species as well. Your point is irrelevant.
Quarians without masks on Rannoch != improved immune systems. It was partially because of Rannoch that quarians developed such a weak immune system.
Quarians did not invent the GI! Quarians didn't want to design something that could be used to kill quarians; the GI is a Geth designed combat system.
Maybe disregarding the fact that nearly all weapons in the Mass Effect 3 era are inferior to human weapons of the 2000's helps your point. The Reegar is of course the exception, but don't forget that the Arc Pistol was a waste until The Great Krogan, Fangan modified it. Arc nades are okay, but not much better than other grenades.