Like the need to "avoid carbon emissions" or some such other preposterous gibberish.
"It keeps the death bears away," or "Otherwise the hornets will mutate and kill babies."
See if you can invent your own incredibly outrageous bullsh*t excuses in which it is okay to kill people because, like, otherwise bad stuff could result and what have you. So then when the government has to do it that means they were forced to.
Another one. "We have to mulch up the elderly in order to protect toddlers from the fumes given off by incontinence pants." Etc.
Just make up your own crazy stuff. Remember, real sophistry excludes reality altogether so there is nothing that exists to actually compare it to. The more removed from reality, the better the excuse to just kill strangers to save the future, yada yada yada, etc.