When I point out that Apple listened to the Chinese government and removed apps that protestors were using to communicate during the Hong Kong protests, they seem to get it.

If you phrase it as "sideloading" then probably not, since it doesn't sound like something they might want to do, it also sounds difficult and technical. If you phrase it as installing your own software then it might garner some interest from the general populace, as who wouldn't want the option to install their desired software.

Of course the average person doesn't care. Similar to how the average person doesn't care about age verification for social media. '

But it will affect them all the same.

Of course nobody is doing that, because Google and Apple made it too hard already.

Even Fortnite gave up on direct installs. If one of most popular game in the world can't make it, who can?

This "sideloading" thing is mostly to enforce US sanctions against countries like China, Russia and Iran.

So yes, hundreds of millions of people care about this.

It sounds like you're not grasping the meaning of the linguistic construction being used by the person you're quoting. (Or you're being deliberately deceptive about your understanding of their intent. But it's probably just the former. I'm guessing you're ESL.)

"Ruining Android for everyone" ("to try to maybe help some") does not mean, "Android is now ruined for X, for all X." It means, perhaps confusingly, pretty much the opposite.

It means: "There exists some X for which Android is now ruined (because Google is trying to protect Y, for all Y)." (Yes, really. The way the other person phrased it is the right way way to phrase it—or, at least, it's a valid way to phrase it.)