It is a good idea, and often necessary, if you are saying you have got hold of the truth, to have an explanation of why a lot of other people disagree.
Ted Honderich, How Free Are You?: The Determinism Problem, Oxford: Oxford University Press, 1993, p. 105
If I had doubts of being able to light up a room by quicksilver intelligence, something I both envied and suspected, I was confident of having an ability to find my way to clear things of my own to say, some of which might produce a longer light. But what was definitely also needed in order to produce these goods was the onward marching.
Ted Honderich, Philosopher: A Kind of Life, London, 2001, p. 96
It most certainly does not follow that to be persona non grata to some people on both sides of a conflict shows you are in the right. That is weak stuff. You need not go far to find counter-examples to the idea. You can, on occasions, infuriate both sides and be wrong. Still, to have some of both sides against you does establish something that is anathema to some on both those sides, which is independence of mind.
Ted Honderich, ‘On Being Persona Non Grata’, CounterPunch, February 19/20, 2005