I am talking about the very specific case where the ramp is short enough that I can't merge early, and the traffic is fast enough that I can't merge from a full stop.
When the traffic is fast enough (average way above posted speed limit) - every ramp becomes like that.
This is where NJ becomes a winner - traffic that flows at 85mph and drivers that either genuinely don't know you're there, or consider that a car about to merge at close to their speed but still a bit slower, because the ramp is ending, is an event that has nothing to do with them. It's the oblivion that puzzles me.
In NYC, traffic is frantic, drivers are rude, but most of them are fully aware you're there, and will stay nasty without endangering your life.
Of course nothing beats Connecticut in nastiness - here, they fully acknowledge you like new yorkers do, but will let you die like NJ drivers would