>You "kill" vim by preinstalling a friendly text editor by default, like TextEdit or Notepad. Many of my technical friends (myself included) use vim, but vim will never be used by everybody, everywhere. When most people first get a new computer and want to edit text, they use TextEdit instead of vim.

This is just plain wrong. You're not understanding the meaning of "kill": that means that it's dead, gone, unable to be used.

Many, many people (millions?) use vim every day. I do, and others I know do too. People who use vim don't care about what editors other people use; it's just as irrelevant as what cars other people drive. I can go buy a Honda, a Tesla, or some 50-year-old antique, and drive it if I want, legally. Other people buying Fords has no effect on that. No one cares about everyone, everywhere using vim, only that it's available and it works. That's not changing, and there's no indication it will ever change.

>The end game of ad blocking is that everybody installs one.

No, because there are technical ways of getting around them. Look at all the sites that have anti-ad-blockers installed, and force you to turn off your ad-blocker to see the site. Of course, the ad-blockers have been working on ways of defeating those, so it's an arms race.

>If theirs is the default adblocker even on just Chrome, they'll have substantial market share. Most people won't bother installing a browser extension if it the default is good enough, just like how most people don't use vim if TextEdit is good enough.

Who cares about "most people"? I don't. My whole assertion is: how will they prevent other blockers, like UBlock Origin, from being used? If they're not going to bother, then great, but that's not what the OP claimed: he claimed they'd find ways of actively preventing 3rd-party blockers from being used, either technically or legislatively.

>Google is preventing that from destroying them by shipping their own as a default instead.

Wrong. Google isn't preventing anything, as long as they don't actively prevent you from installing a 3rd-party blocker. The message I replied to alleged that this would happen.

Some operating systems (macOS, most linux) do install vim by default. The problem is that vim has a very high learning curve, and most people don't want to spend time learning to edit text. Microsoft has tried doing what you described, by installing ie/edge by default, and making it good enough for most people. Admittedly it's working to some degree, but there are still plenty of people who choose firefox/chrome over edge.