Lincoln has an obsession with perfection. Unless everything is just perfect in a scenario it seems impossible for him to be happy.

The way he narrates suggests he views his siblings as someone in a zoo would view animals.

Basically its, "what a bunch of loud obnoxious cunts, I wish I could play my vidya and read my comics without all this other shit distracting me"

Lincoln never realizes he pretty much creates his own problems Jimmy Neutron style.

I imagine Lincoln growing up to be a serial killer, no joke. Some guy who's so obsessed with perfection that he will destroy everything around him to get it.