Gratitude is nice but the poems that do change governments and people's lives for the better can't only do gratitude. Anger is needed too. Accountability is important.
Some people treat the oppressive government as weather. Something you don't have any control over and therefore - no responsibility for. Others treat it as their responsibility. And these people are NOT grateful, when injustice is done in their names.
let your sister Scorn not leave you
for the informers executioners cowards—they will win
they will go to your funeral and with relief will throw a lump of earth
the woodborer will write your smoothed-over biography
and do not forgive truly it is not in your power
to forgive in the name of those betrayed at dawn
Some people treat the oppressive government as weather. Something you don't have any control over and therefore - no responsibility for. Others treat it as their responsibility. And these people are NOT grateful, when injustice is done in their names.
Compare https://www.poetryfoundation.org/poems/48501/the-envoy-of-mr...
Guess which country remains totalitarian.