I would blame ad providers more than individual website owners. From my experience, ad providers have made it very difficult to serve their ads unless you use an ad-supported cookie consent manager. I tried to write my own simple cookie consent form and gave up after realising how obscenely complicated TCF is. And since most ad-compatible cookie consent banners are provided by the ad companies themselves, you kinda just get stuck with bad options. I even tried to pay for a commercial cookie consent manager but it wasn’t supported by my ad provider.
If I had more time I probably could have figured it out. But unfortunately I’m just running a hobby project and do not have weeks to spend on this. The revenue from the ads is what pays for hosting. I imagine lots of websites are in a similar boat.
I would love if there was a simpler option that could respect people’s privacy more, be less annoying, and that would still allow websites like mine to survive by running ads. Targeting browsers instead of websites could have been that option.