Unless said opinion has enough evidence supporting that it is of negligable credibility which is what was done here. Your opinion was pretty much blasted out of the water.

An opinion stops remaining an opinion when it is known that to have such an opinion is stupidity. It then becomes sheer stupidity and ignorance. Like being racist.

Example being the remark you made about blowing up an entire country for what one person did just because his heritage comes from that country. For all you know he could have been living somewhere else for YEARS before attacking and possibly thinking of himself as a nationalist of that other country.