The writer has managed to discipline his rage, to fight it down until it calms into precise and powerful prose.
That is, the rage still storms, but the writer has been able to channel effusion into eloquence. Like most people who write about Trump, he is at pains to find strong enough adjectives to express his disgust (insulting, repulsive, crass, vulgar, defiling, horrific, reckless), but, more importantly, in invoking the specific sacred nature of this section of Arlington Cemetery (the writer is a veteran of the wars in which these men died), he establishes a compelling opposition (sacred/profane; sacrificing/selfish) that he sustains throughout the piece.