And if the community surrounding the people who are unemployed, disabled, pregnant are vegans? Pagans? Scientologists? Jehovah's Witnesses? Wahhabists? Taliban? ISIS?
I'm being deadly serious. What if the community surrounding some of the people you mention are from a group who believe strong-mindedly to various extremes in unified goals? Who want to end the destruction of animals. Who want to destroy psychiatry. Who want to punish women for no other reason than their gender. Who want to bring about the end of times. How does your neat little utopian view slot into these scenarios?
Trained to work in an abattoir? Shit, sorry, your skills have no use in our fruitopian future. Or maybe they do, in our dystopian land where we punish the disabled by ending their lives.
Government, as I repeatedly say, is about compromise. The fact that we have a progressive tax system in this country, which enables us to feed, clothe, house and educate those who, in many cases, literally have nothing, is remarkable, and if one of the most charitable things a citizen can do is to give up a portion of our earnings to help those more needy than ourselves, and help provide a modern civilised society around us? I do that gladly.