If the ads would be self-hosted and properly curated by the hosting site I wouldn't have a problem with them (just as I don't have much of a problem with print or tv ads). The specific problem with web ads is that most of the web made a deal with the devil: 3rd-party ad-networks which are directly injecting who-knows-what into webpages. Those ads are not just cheap click-bait-trash, but also potential malware vectors. At that point, ad-blocking essentially becomes a civil duty ;)
...and FWIW the use of ad-blockers is indeed recommended by the German "Federal Office for Security in Information Technology":
The US federal government also officially recommends using an ad blocker to protect oneself from e.g. ransomware and fraud, and has issued a warning that online ads are being used for those things:
...and FWIW the use of ad-blockers is indeed recommended by the German "Federal Office for Security in Information Technology":
https://www.bsi.bund.de/DE/Themen/Verbraucherinnen-und-Verbr...