Xを Yだと + verb-of-judgment (accuse/treat X as Y)

A productive pattern: [object] を [predicate] だと + verb of judgment/accusation/categorization, meaning 'judge/accuse/treat X as Y, recognize X as Y.' Examples: ~を犯人だと疑う ('suspect of being the criminal'), ~を無責任だと非難する ('accuse of being irresponsible'), ~を天才だと思う ('think of as a genius'), ~を有罪だと認める ('acknowledge as guilty').