The retina Macbook Pro IS the rMBA. It's what you get when you add the retina screen and the requisite battery to keep the minimum 10 hour life.
And I have no idea what you mean by 'ridiculous and crappy performances'. Both models of Pro laptops are considerably more powerful than the vast majority of laptops on the market, and on the PC side of things, if you want something more powerful, you will generally end up with a 4-7lb laptop. The world has been doing 'pro' level work on laptops less powerful than these for decades, so who knows what you are on about...
I'm not even arguing with blind delusional people. The Retina Macbook which is barely as powerful as an iPad is a Macbook Air...? Yeah right
Also Macbook Pro were plenty powerful enough...6 years ago, until Apple stopped innovating and relied on Intel crappy less and less powered (relative to market performance evolutions) processors to drive its upgrades since Apple has added literally nothing new since the HD "retina" display.