[AnonEmouse]

Just my reading of what he actually said: I will never agree with anybody disrespecting the flag of the United States of America or our country"
It's not the sentiment of the whole piece he did, it's that uncompromising opening line. He's not a politician but I'd suggest the 'I will never agree' part is way too absolute a wording to engender sympathy with his view regardless of the rest of the statement.

Had he said something like' at this time I cannot agree' or 'I cannot see a way to agree' it would show he is coming from a place of personal opinion but with an open mind. But that first line is unambiguous and final in its message. To me it says he will never change his mind regardless of any evidence put to him that he might be wrong.

Note I'm not commenting on his opinion, just how he expressed it. To me its uncompromising in its wording and that, I feel, is what opened him up for criticism. For me, if he actually feels that way, that we will never be swayed to understand the protests he disagrees with, then he would have been better placed to just say nothing.