Ad blocking is a security issue now. When the ad networks started serving malware, what were the websites response? Basically nothing, they just said it's not

Ad blocking is a security issue now. When the ad networks started serving malware, what were the websites response? Basically nothing, they just said it's not their problem and pointed the finger at the ad networks. Ad blocking is now vital to having a safe web experience. This is not some trivial issue. Computers and the web are critical for modern life now. The same computer that people use for browsing news sites is also used to do online banking, pay bills, apply for unemployment, do work with sensitive data (for example a work laptop), and so many other things. And computers are also used by minors. Some of these ads are really disturbing and not something minors should see. Again, when this started happening, how did the websites respond? They did nothing.