Like yes there are extreme environmentalists and that’s bad, but normally when someone takes on an ideology like environmentalism, they don’t also explicitly & automatically say that the environmental is all that matters and that it’s in principle permissible to cheat & lie in order to benefit the environment.
I moderately confidently expect there to be a higher proportion of extreme environmentalists than extreme utilitarians. I think utilitarians will be generally more intelligent / more interested in discussion / more desiring to be “correct” and “rational”, and that the correct and predominant reply to things like the “Utilitarianism implies killing healthy patients!” critique is “Yeah, that’s naive Utilitarianism, I’m a Sophisticated Utilitarian who realizes the value of norms, laws, virtues and intuitions for cooperation”.
I moderately confidently expect there to be a higher proportion of extreme environmentalists than extreme utilitarians. I think utilitarians will be generally more intelligent / more interested in discussion / more desiring to be “correct” and “rational”, and that the correct and predominant reply to things like the “Utilitarianism implies killing healthy patients!” critique is “Yeah, that’s naive Utilitarianism, I’m a Sophisticated Utilitarian who realizes the value of norms, laws, virtues and intuitions for cooperation”.