So, in order to avoid repeating myself, I believe I addressed that notion here: https://news.ycombinator.com/item?id=23063309
In short, I am not saying that the truth will necessarily "win out" over the false. Rather I am saying - and this was my fault for not being clear enough - that I reject the notion that we should try to pick a side to suppress. Because the same part of human nature that leads to rampant spread of disinformation is the part of human nature that tries to decide what the capital-T Truth is.
So, my personal belief system - and I know how unpopular this viewpoint is, especially in current times - is just let them have at it. Remove blatant calls for violence, and nothing more. ("nothing more" should include racism and other unpopular beliefs, by the way, in case my viewpoint isn't controversial enough thus far).
So, saying "We should go out and attack $GROUP" should be removed. But saying "I think $GROUP is inferior due to highly discredited scientific-seeming reasons" should not be removed, because however wrong or distasteful it is, it's not directly advocating for violence. Similarly, something like holocaust denial or anti-vax beliefs, etc should similarly not be suppressed.
Again, I know I'm probably in the minority here, but I hope that helps you understand my thoughts on these issues.