I understand what you are saying. So far, my experience on Steemit is that if you disagree in a polite, reasoned and considered way, folk engage in discussion and don't just downvote. It's about argument and debate and agreeing to disagree and at the same time respecting others' views. That said, if you feel that you are being unnecessarily trolled or flamed, then take it up with the Witnesses. Here are two links that may help:
Trust this helps and good luck.https://steemit.com/~witnesses
https://steemit.com/steem/@steemitguide/steemitguide-what-is-a-exactly-is-a-steem-witness-and-why-every-user-should-vote
https://steemit.com/steemit-guides/@pfunk/a-full-steemit-user-s-guide-to-steem-witnesses