Utilitarians make bad ethicists! They are too usually caught into formulating quantitative tools in order to make qualitative propositions.

In my opinion, they have the wrong tools in explaining things when it comes to ethics and morality.
I also fear that their approach is somewhat misdirecting and concepts of ethics should not be investigated exclusively under the light of utility. That assumes that we have a way to actually measure utility, something which I'm also highly sckeptical of.

Upvoted/Resteemed!