何よりそれに対してずっと足掻いてきたのは自分だ。こんな男の前で、その通りだなどと正誤以前に絶対に答えたくはない。
The character is asked a question regarding his status as a cursed being. However the character doesn't want to answer, regardless or whatever the other's opinion may be correct or not, as he dislikes the other person.
I understand the sentence is "above else, when it comes to that, I was the one who struggled." and then "I don't want to answer him"
I'm a bit unsure, what does "、その通りだなどと正誤以前に" mean here?
"before saying that's right"?