Time and again [1] we've seen that a company's need to make money from user profiling and user data trumps broader privacy protections and wellness of its user base. Whenever these two seem to be in conflict and the company seems to be avoiding privacy intrusions out of benevolence, the truth is that the convergence is yet to happen. This is just a matter of
when, and not
if.The broader public either doesn't understand this well or the companies take these decisions to cause fatigue and resignation among the public. The end result is that effectively nobody will care about these unless people who care (like the ones here, as one among many groups on the web) take some time to dissuade others from using these applications/platforms (be it Chrome or WhatsApp or Facebook or anything else).
An ungoogled Chromium is not the solution for this because maintaining a fork that stays true to other advancements takes a lot of effort and time, and in this case cannot be relied on either (unless, as someone pointed on another post here about ungoogled Chromium, you take the trouble of building it yourself every time spending hours).
For now, evangelize Mozilla Firefox and push anyone you know who uses Chrome to move out. Even if Google makes changes to this tracking feature because of backlash, it will only be a temporary holdout.
[1]: https://www.eff.org/deeplinks/2016/08/what-facebook-and-what...