Sorry, I agree, 165 isnt inherently unsafe, but other traffic, even two lanes over, thats the issue. People plan traffic moves based on the expectation that other traffic is going a reasonable speed, which they view as somewhere under 100. They dont scan far enough back to account for a car almost tripling 65mph. Granny might pull a double lane change, having checked her rearview, and never looking back again, because she cleared far enough back and doesn't expect another vehicle to approach that fast.
Animals, well, that's the driver problem, however, if that animal gets that driver out of control, suddenly some family out for a drive has a 165mph, 4300lb missile coming at them, and suddenly it's their problem as well. So, in closing, if there is ANY traffic, going these speeds is irresponsible, IMO. Not that NY, in the fall, might have deer entering the roadway, right?