Actually logic isn’t opinion any more than 2+2 = 4 is opinion. In order to refute a logical argument (and I mean the word “logical” in its strict mathematical sense) you need to show either (a) a flaw in the argument, or (b) a meta-argument that invalidates the premise. If you can do neither, then you are unable to refute the argument. You may then choose to run away from the conclusions or pretend that reason and logic don’t matter, but that’s a very weak position to adopt.