Thanks for sharing your perspective. Downvoting is an important part of reaching rewards consensus. Especially with the convergent rewards curve in place, it's time to stop thinking about votes as delivering 'value' but instead of being a vote for that post to receive value.

An upvote says "I think this post is more valuable than shown" while a downvote says "I think this post is less valuable than shown."
There is also an idea around curating accounts instead of posts, which is how SBI works. Sponsoring somebody says "I think this account should consistently receive more value".

The reasons why somebody is downvoted vary by the downvoter, but I generally agree downvoting based disagreement with what is said creates a very problematic environment. Should the value of somebody's work be tied to their 'right-think'? I don't believe so.