Incorrect. He tried to box in China and contain it as a solely regional power by building military bases along the first island chain and flipping countries into the US sphere of influence.
If China started doing something similar in North America the US would probably invade that country almost instantly (e.g. like it almost did to Cuba during the Cuban missile crisis).
Probably not - the Cuban missile crisis was about nuclear missiles and nothing else.
Cuba remained an ally of the USSR after the missile crisis and continued to host Soviet conventional forces, including fighter jets permanently stationed just 10 minutes from Miami, and regular temporary rotations of nuclear bombers like the Tu-95: https://www.warhistoryonline.com/guest-bloggers/tupolev-tu-9...
If China started doing something similar in North America the US would probably invade that country almost instantly (e.g. like it almost did to Cuba during the Cuban missile crisis).