This is the second time a megathread has to be made because of everyone posting the same stuff over and over again. Keep in mind that the Google Chrome UI team is not reading this community-run subreddit here, and that the mods here are not Google employees (nor fanboys), if you want to complain more effectively, go to the official channels.
That being said, Google pretty much is going forwards with this, the UI change is barely new anymore, it's been 8 months. You all are down to changing program files as a bandaid fix, it's getting removed, either get used to it or switch browsers.
No, downgrading is not a safe solution, any posts or comments suggesting to downgrade and thus opening people up to threats will be removed.
Discuss the changes here, but know that you are better off sending alt+shift+I feedback or finding the bugs feature page if you want to be more productive about it.