This is such a ridiculous position.

I'm not the original person you responded to, but I am going to go out on a limb here and say that I disagree. While I personally do not think that all Chromium browsers (especially since there are projects like ungoogled-chromium) transmit your personal data, I can't verify this myself because the Chromium codebase is far too much of an undertaking for myself to review.

While the same is also true for Firefox (and really any potential open source browser), on a pure personal-trust factor I trust Mozilla/Firefox to be more caring about protecting my personal data than I do Google, who literally revolves around data collection. Inevitably its a moot point for me since I do use Google services anyways, but I don't think its that far reaching for someone who potentially doesn't to take the original person's stance.