Unless they already feel very strong against Google, I can also guarantee that no one is going to start using Firefox despite the fact it's perceived as inferior. Solely because it's perceived as morally/ethically superior to anything built on Chromium.

Morals and pathos are a very hard sell to anyone in our rapidly shrinking attention economy on their own, especially if someone doesn't already care about it. And that seems to be the only real argument I hear about Firefox anymore. Is the fact that it isn't chromium based. I'm pretty sure most people don't even know what a Chromium is. Regardless of if they're using Google Chrome or anything else based on it. And personally, from the perspective of a user who wouldn't know or necessarily care to use add-ons, and it's still one of the unfortunate souls who's part of the "nothing to hide" mindset, Firefox really doesn't provide any perceived benefit to them that they would care about.