Blocking food from children? Drama queen, much?
Ultimately, the web is the wild west of advertising. In TV ads, these ads cannot steal your information, mine your data, run malicious scripts, etc. Incidentally, there are also ways to skip these, and that has hardly killed Television.
Meanwhile, on the computer, Ads can take a silent experience and make it very loud. They can force you away from what you're doing (particularly problematic if you're on mobile and using an in-app browser. A number of links off Reddit are more or less unreadable without an adblocker due to the redirects), pretend to be a part of something else (e.g. download pages with 16 "download" button, where the 15 ads clearly have the larger ones) and, even if you don't notice them, they can still use exploits and vulnerabilities to mine your data or potentially take over your computer, clearly without your consent or knowledge. Definitely unethical, possibly even illegal.
So how can we ensure we aren't stalked by these ne'er-do-wells? Ideally, sites would police themselves and only allow quality, ethical advertisements, but due to greed and laziness, this simply is not the case. We need some other way to protect ourselves... enter Adblock et. al.
Adblock is a business, yes. Notably, they are in a position to make a huge amount of money by using their ad-blocking software to spy on its users and sell that to their "approved" advertisers, which would really be a racket. Instead, they chose a more ethical path, wherein they don't really make any money off their users. Instead, they chose to allow an inoffensive subset of ads, which, yes, they do require a pittance from advertisers to keep the lights on, but keeping up with the unscrupulous methods is hard work, and there aren't many people who'd do it for free.
This reins ads back down to inoffensive levels, as they should have been in the first place. These protections would not need to exist if sites would simply keep their ad quality high.
Sites like Tom's Hardware. Don't act innocent; there are 26 different sites loaded by this page alone that are ignoring my do not track requests. You think I'm not going to protect myself from that?