Engaging in the same process and behavior damages the intellectual credibility of an argument because it allows you to ignore potentially relevant information. It also significant diminishes any moral authority you may be laying claim to.
As far as caring for them, I don't think anyone is obliged to care for anyone or anything (free will and all that). I do think that the more people that you choose to place into your own personal out-group of "gofuckthemselves", the more of your own humanity you lose touch with.
I choose to focus my ire on those responsible for creating the policies and making the decisions to create the situation, not the people at the bottom of the ladder who are responsible for enacting them.
I find your lack of empathy disturbing.
Then think again about who is dehumanizing who.