I'm a sucker for a poem with a kick in it's ending, and I think the last verse here really packed a punch. It summed up the ports thoughts clearly and definitively and makes the reader ponder. Although the beginning was a little forced in terms of rhyme, I thought it grew better as the poem went on and you saved the best til last. Well done.

I really enjoyed the flow in your poem and the last verse says it all for me. Very nicely written!