US diplomats in other civilized countries aren’t treated this way for sure, no matter what are their crimes. There are certain procedures to held diplomats accountable. Arresting foreign diplomats is a thing you can expect in Zimbabwe or Somalia. I don’t think that even a North Korean LEOs are as ignorant and lawless as of People’s Republic of NYC.
Actually, I think the “civilized” treatment you reference has been discarded in recent years.
Yes, I support her arrest. And we do not know yet if she was strip searched few the documents she was carrying.