Boycott the technology they have forced on humanity. There's a growing number of basic tasks that require a device and there's a large portion of the population that just doesn't care enough to not fall in line.

With how apple shit is treated like divine ambrosia and, in many places, a status symbol, I seriously doubt any boycott against them will have any effect.

Android is like Windows in the 1990s. It's fucking everywhere and literally too big to boycott. Most OEMs also prefer to play ball with Google and keep the phones locked because it's profitable for them as well. Boycotting a specific OEM might cause some damage to them, but it won't budge Google. It's good that some companies are making phones that ship with more open android clones, but those phones are still too expensive for most people to buy