If there’s a chance of a cure for the disease I’d rather let that person live so they could become an example of redemption.

The undeniable life long psychological toll of taking another human’s life, regardless of the justification.

The creating of martyrs.

Counter violence begetting more violence.

Depriving other humans of a friend, loved one, family member etc generally works as a great recruitment strategy - which is best avoided.

The colloquial use of the word fascist versus its actual definition.

Silencing of opposition doesn’t always have the intended consequences.

etc etc

P.S. Having said that, if they’re wearing matching armbands and shirts whilst tooled-up and marching towards someone’s house because of how they were born or their lifestyle then, yeah, it’s probably time to load up and take the safety off. Gotta draw a line somewhere…