Setting aside the obvious issues of comparing a country with a population of 30.8 million to one with a population of 331.9 million, a low estimate of casualties in the American Civil War is around 600,000. About 100,000 people died of drug overdoses in total last year.
So, no, fentanyl is not killing people more people than the Civil War by literally any metric.
The irony of you ranting about our collective unwillingness "to ask for forgiveness when we cause harm" combined with your description of transgender health care as "mutilation" is overwhelming.
... but the vast majority of deaths in any war was caused by disease. Of the 600k number you quoted, 225k were from diseases that ran rampant at the time. Total combat deaths for the Union were 110k; for the Confederacy, 94k.
If you want to include PoW deaths you can, but most of those were disease as well.
So yes, fentanyl absolutely is killing more people than the Civil War.
The irony of you ranting about our collective unwillingness "to ask for forgiveness when we cause harm" combined with your description of transgender health care as "mutilation" is overwhelming.
Right, because there's so many apt descriptors for "the removing of healthy organs for no medical reason". Please, I'd love to hear your preferred term for that.
~~EDIT~~ Also, it's pretty funny that, in your desire to oppose me, cause I'm a bad, evil transphobe!, you find yourself defending the fentanyl plague. Next time you think "am I the bad guy", remember that you were trying to downplay 100000 dead Americans, last year alone.
Cause "transphobe bad" lol