As previously discussed, the crime decline started under Dinkins and continues to today. Giuliani was just one mayor along that road. And it was a crime decline that hit nearly all the big cities in the US in the same era, so crediting Giuliani makes particularly little sense. Just as an example, check out DC:
https://mpdc.dc.gov/sites/default/files/dc/sites/mpdc/publication/attachments/homicidereport_0.pdf
Murders fell by about half in that period.
Or Boston:
https://upload.wikimedia.org/wikipedia/commons/0/02/Homicide_Rate_in_Boston.png
Or San Diego:
It isn't. In terms of murder rate, NYC stands at 3.39/100k:
https://en.wikipedia.org/wiki/List_of_United_States_cities_by_crime_rate
That's far below the national average of 5.30.
It also has low property crime, with a rate of 1448.59, which compares to a national average of 2,362.20.
To put it in perspective, if NYC were a state, its murder rate would rank closest to Iowa, which has a rate of 3.3. The dangerous places are places like Louisiana and Missouri.
What matters isn't my opinion, but the verifiable facts. However, since I form my opinions by consulting the verifiable facts, those are the same thing. By comparison, you're just pushing a naked opinion, with no facts to back it up.
That would be unwise. We have statistics about how people fair when alone and in need of immediate help. It's one of the reasons life expectancies are much higher in urban areas than rural ones. If you run into trouble in urban areas, you generally have people nearby who can help you, well-funded public services that can respond to your emergency quickly and with competence, and nearby trauma centers that can save your life. If you run into similar problems in rural areas, there's a good chance nobody will even know until your corpse starts to stink.
Sadly, yes. I've heard there are some nice spots, like Austin and parts of Miami, etc. But my experience was with nastier parts. Fortunately, there's little cause to travel there, other than to the tourist enclaves on the coasts -- much as can be said for must of Central America, come to think of it.