youtube + derank

We have someone that is trying to rank scam review videos to opportunity switch stealing our traffic on Youtube. He's got a bunch of down thumbs, and comments saying that his video is BS basically. Any advice on how we can start out ranking him / pushing him out of rankings?

Ghosted Video = A video that's not ranking anywhere, meaning you'll never get any organic views at all. Other possible terms = Deranked, Shadowban?, Deindexed How to check? (Non-related trending videos becomes suggested) 1. Open browser incognito and go to YouTube. 2. Check the left bar and go...