2 a day.
Who decides when a number is "uncomfortably high?" I dare say that if a hundred people had died so far, or thirty, you would still find that number "uncomfortably high," since you consider the war itself invalid, and by your lights, any deaths at all over there are a waste.
As I remember the numbers, during Vietnam, we lost an average of 15 people a day. In WWII, that number was about 300 a day.