> And it doesn't work there, so why would it work for impaired driving?
It does actually. See how thieves resident in Florida travel to New York to work because of the different enforcement regimes for one of the clearest possible examples[1].
Even if deterrence didn’t work at all putting people in prison is good because of incapacitation. Committing crimes is stupidly right tailed[2]. Every career criminal in jail for a year is a year society doesn’t suffer their crimes.
[1] https://www.realclearpolitics.com/video/2024/02/02/cnns_john...
[2] https://sk.sagepub.com/ency/edvol/the-sage-encyclopedia-of-e...
Note that New York seems to have much lower property crime rates than Florida. It's usually difficult to compare this between jurisdictions but it seems pretty clear cut in this case.
It also seems like the percentage of goods lost to retail theft is slightly lower in New York than Florida.
c.f. you have a thirdhand cherry-picked quote from someone on a political site that implies differently.