And this isn't an unwritten agreement that this member of society is even aware of so... so much for that aspect of society. Or as my grandfather used to say, you can wish in one hand and crap in the other, one of them will fill up faster. That unwritten agreement is worth everything its written on.
What exactly am I taking by not viewing ads? I view it the opposite, ads take away my attention and time and worst of all are generally using psychology to influence my behavior. If your site is using them to monetize, I'll be blunt, tough shit. I dislike the advertising model of shoveling malware javascript from dodgy ad companies and if blocking ads is the way to get that changed, so be it. Consider this societal protest over a business model I disagree with on its very premise. All the way back to Edward Bernays I think advertising has a rotten core by encouraging things like women to smoke, and passing off one of the most common elements off as some sort of rare thing amongst numerous other ethically questionable tactics.
But what theft has occurred when ads are blocked? What have I taken from the ad companies? From the publisher? What alternative has been given? If anything the only thing I have taken away is encouraging them to pursue better ways of monetization that doesn't treat my attention as some fungible thing for their own benefit. This company made $200 a month, donations alone could easily recoup that cost with 40 people doing $5 a month.
Also, if I go to a website and read content without viewing ads due to having an ad blocker. Well oops, but not like there is a giant banner over each hyperlink that says I can't click it without hurting someones feelings or bottom line. Block me if you want, but ironically you'd be cutting of your own nose to spite your face. I'm willing to pay for no ads, but no site is wanting to engage in what that truly means.
Point me to the ethical problem with ad blocking and maybe I'll buy your argument. But if your fundamental premise is that you need ads to publish, you're not going to convince me with $200/month arguments.
My computer is controlled by me, ads come through a programmable rendering engine, nobody owes ads the right to render unconditionally.
All that being said, the irony is I pay more out via patreon than I'm probably worth in ad revenue to all the websites I've ever visited. I do this because I hate the current model. I'm supporting the content producers that have realized this fact and are embracing it. What are you doing to change things for the better?