You won't have to wait long for my response... Every one of the things you mentioned (even the bike lane) is a far better use of tax (Social Security?) dollars than a wanna be tough guy military parade in the 21st century.

The ex-presidents you cited governed in a time when the US needed to showcase its might, because it had not yet been established. Doing so now is a sign of weakness, or a sense that we are falling behind the curve we have dominated since World War II. JFK's thing was at the beginning of the Cold War, which was essentially nothing but 4 decades of chest thumping, but at the time, nuclear war was a popular fear. In short, the world knows we're armed to the teeth. That's why nobody (save for a few terrorists) ever attacks us.

The Blue Angels cost $15M less for a year than Trump's chest thumping would cost for a single day. No question which of those is a better deal in my mind.