Takaichi: Thank you for residing in this country...
Takaichi: Just doing that is good enough, you're our nuclear deterrence!!!
Yuujirou: I'm not patriotic to this country
Takaichi: ...which is to say...
Takaichi: HUH!!?
I don't know much about Baki beyond this Yuujirou character being effectively the strongest being in universe that can apparently topple countries and whatnot which makes the nuclear deterrence statement make more sense. As with most chinese speakers here you can see that patriotism is 愛国心, containing the character for love so I'm guessing the connotation is that yuujirou saying that he has no love to the country means he's doing it for takaichi which is uhhhh... whatever floats your boat lol.
