Wrong. The US is not flying bombers capable of carrying nuclear warheads at large populations just to intimidate them.
https://www.google.com/amp/s/www.newsweek.com/russia-mig-31-...
US does these things, its just not highlighted front page material in American press when it happens, so it goes unnoticed to American populations unlike when adversaries like Russia fly bombers near Alaska.
Also US conducted similar maneuvers as what China did to Taiwan but to Iraq preceeding the Iraq invasion.
https://mobile.twitter.com/MoNDefense/status/144397595657879...
This was a routine Chinese air patrol that got propagandized by the US.