Let's do the math on that
With 1.7m confirmed cases that means at least 2.6m Americans have been infected (possibly more or less depending on the triage for getting tested). That is less than 1% of the population
NYC has 8.4m inhabitants. it has 197k confirmed cases and 16,410 deaths per google
16410/0.003=5,470,000 - so if these numbers are correct, two thirds of NYC has had the virus.
Testing has only found less than 200k cases in 1.7m tests.
So we are short of 5.27m positive cases in New York
The CDC number of asymptomatic cases would only indicate approx 100k positive cases short.
It seems to me these numbers don't add up