The fundamental concern here seems to be that these ad-blockers spell the end of advertising on the web. Which is preposterous. If — if — these ad-blockers ever get anywhere, it will simply mean the end of a certain type of advertising on the web. To think that the web won’t adapt to other forms of advertising is folly. It’s already happening (“native” advertising, etc). It will continue happening.
That’s been my logic as well. Ad Blockers on my Mac have been around for many years. The most popular service, AdBlock launched in 2009. The Internet hasn’t imploded on itself since then.