The world will only be a better place if these people self identify more quickly. I mean, it would be better if they do not exist but, since they do, I am very supportive of them expressing their opinions so that I do not have to waste time discovering them.
There are always those that assist or even support their own genocide right until the bitter, fatal end. It is a normal human behaviour. As such, the presence of such people in no way implies that their are legitimate reasons for their position.
If fewer than 20% support something, it should be interpreted as essentially zero.