Poetry can utter thoughts one dare not say aloud, nor commit to prose, because poetry is a language of suggestion, interpretation, influence. “It means what it means to you” or “It means what you want it to mean.” That vague avoidance of assigning meaning to words is generally applied to lyrics of songs, but it applies to poetry as well. Poetry can address what may be a cowardly need to say something without accepting responsibility for it. That is, poets, and songwriters, can distance themselves from the genesis of words and lyrics until sufficiently able to observe and interpret external responses to them. One might hope that’s a rarity and that most poets and songwriters are not cowards. I don’t know; I have no way to measure it.
I’m not suggesting what I have written is true, only that it’s plausible. And I can deny believing what I’ve written, because I have plausible deniability.