Brave is doing some of the best anti-Corporatist work in the community right now.
They replace other ad network ads with their own ~ads~ crypto currency . They monetize the content of others and don't tell them. If you have a youtube channel, they will swap out ads and collect the ad revenue without telling the channel that they're doing so. I'm not particularly impressed with their business. In fact I'm pretty disgusted with it.
But even if you're right, why is it unethical for me to install software on my own computer to render websites differently than the creator intended? For example, by removing ads? Or replacing ads with different ads? Or rendering all ads upside down?