Afternoon everyone, realise this is an old thread, but just wanted to add my perspective as someone who has returned from a week's long trip to New York City!
Landing at JFK, the queue by the gate was rather slow moving, so maybe factor in an hour or two? But the entry itself was pretty smooth. We were asked our reasons for staying (tourism), where (hotel in Jersey City) and how long (a week). We got a photograph and fingerprints taken and our passports stamped, then we were off on our way. Admission itself took about two minutes per passenger.
For context, we are both Black Africans with British passports. My mother speaks with an 'accent'. The officer was a White American.
I'm not necessarily saying this will be the case for everyone, but it was all rather easy for us this time. Just as easy as when we travelled to Los Angeles in 2018 (the first Trump administration).