first of all "should" is pushing an agenda versus "do" which is memetic. I prefer do vs. should. Now of course I may have characters that show should because that if more realistic. However in long works of fiction the most liberal definitions of politics will show up (that is when how people react to one another, however if that's what you see as politics generally then I feel for you).
Lyric poetry is much different from fiction in length. Some people love to push political agendas in this pisspoor environment for politics (one reason it's pisspoor is few people read poetry). I take the position that A.R. Ammons takes on this particular issue that write good poetry leaving politics out of the poetry and as a poet you can then speak about your politics or even write an editorial or something that actually is a good forum for your views.