> It’s not unethical to work in the auto industry because people can die in car accidents.
Why not? Cars are pretty fucked in a lot of ways. I wouldn't consider someone working in the auto industry to be morally bankrupt but that doesn't mean that automobiles are not ethically ambiguous
> It’s not unethical to work in the beer business because people can become alcoholics
Why not? You are producing a dangerous drug that is constantly killing people. Would you say that people manufacturing illegal heroin are absolved from their externalities?
> It’s not unethical to work for a credit card company because people can bury themselves in debt.
Also why not? Credit cards, like automobiles, are pretty fucked in a lot of ways.
> it’s not unethical to work in defense because the weapons may fall into the wrong hands
Once again, why not? It seems as though weapons have consistently fallen into the wrong hands for all of history.
Im not saying that all people in these industries are bad people, but we can't pretend that our actions have no externalities just because those externalities are accepted by society as normal