Allen says people who support flag burners might note an irony in my argument lines 39-40 explain what allen means using details from the editorial to support yor answer

Allen compares the Supreme Court decision on flag burning with the Chinese government's decision regarding protesters in Tiananmen Square to show that allowing protest is fundamental to the U.S. ideal.

Allen's attitude toward those who think that burning the flag should not be allowed as a form of protest is that he understands and respects their concerns.