> Is it possible that "people of color" account for 90% of the total people who jaywalked in NYC in 2019?
No.
I cannot say this in strong enough terms: every single person in NYC jaywalks.
Jaywalk ticketing is part of a longstanding policy of the NYPD, which is to use any occasion that presents itself to frisk people they deem "suspicious." The NYPD's definition of "suspicious," in turn, looks a lot like a colorwheel.