Ha, some of my most thoughtful and most balanced posts where I've put both sides of an argument have been downvoted the most.
Sometimes—usually with controversial topics—I've sat on my post and watched the votes oscillating up and down so in the end I've ended up with none or near zero.
From my experience, almost inevitably, downvoters don't offer a counter viewpoint or argument. Whilst irrelevant when it comes to my posts, it is important when scaled up to real politics. Voting out of gut reaction isn't helpful.
It seems to me that as gut reaction can now be manipulated so easily in today's world that it's a substantial reason why democracies and the democratic process are in such a mess.