I never claimed there was no physical component to addictions or that withdrawal symptoms can't be very bad. It's just that it is possible to end all existing

I never claimed there was no physical component to addictions or that withdrawal symptoms can't be very bad. It's just that it is possible to end all existing addictions (alcohol, drugs, Facebook, etc) and still live, but no one can end the "addiction" to oxygen and still live. That's why it's unreasonable to compare breathing to addiction.