Chromium / Blink is open source, we should be doing everything we can to get as many users using non-Google Chromium browsers. We really shouldn't be having to worry so much about Google's conflicts of interests. Brave and Blink-based Edge are looking to be better and better options.
Chromium is still controlled by Google. Exhibit A: this ad-blocking API issue, where Google decisions will affect all Chromium browsers. (Sure, they can maintain patches against upstream, but over time that becomes non-viable.)
If Google's behaviour concerns you, you need to use Firefox or Safari.
This is a strange comment. On Linux at least, Firefox is far easier and quicker to get building from scratch than Chromium. I've done both relatively recently.
Another is UnGoogled-Chromium: https://github.com/Eloston/ungoogled-chromium
Would love to see this latter option becoming something that appeals to a very large, mainstream market rather than just a few techies.