I've always hated that last moment when BAM! There's your robot son, who suddenly loves you and doesn't wanna die. You then get to either say "yeah I love you kid, of course I'll save you" or "f*#@ OFF KID!!! YOU'RE NOT MY SON!!!". It bugs me that you're almost forced into the parenthood of an eternal child, and while I could just abandon him, it would just feel wrong to do so. So what I'm proposing as a mod would be to completely delete that horrible choice. The moment you pop up in front of Ingram, Tom or Sturges there is no kid waiting for you, and you can just walk up to the person manning the teleporter and say "Fire it up" and blow that place without being a parent or having a bad conscience. Lore wise it would even make sense, cause Father/Shaun have never considered synths to be sentient, so why would he make sure the synth kid gets a parent in the first place? Unless it's meant as an emotional land mine as payback for betraying the Institute...