Thx for the history lesson. I'm glad you learned something today that you're interested in.
I loved Quake as much as anyone, I loved Wolfenstein 3D and DOOM when those were new, hell I still love them for nostalgias sake, but, honestly, first person shooters would have evolved anyway into the gaming force they are today regardless and TF2 or something similar would exist.
But honestly, none of that matters because Wolf 3D happened, Quake happened, TF, Half-Life, TF: Classic, HL2 and eventually TF2 happened. They're here and they're not going anywhere, why get a beetle in your anus about it?