How about we just get on with it and delegalize ads already? They’re a net negative in every form, subsidizing disgusting companies that shouldn’t exist, infringing on everyone’s privacy (including your children! think of the children!!!!!), and making us jump through all kinds of ridiculous hoops to minimize our exposure to them. I don’t think the solution is more hoops.
I don't think ads should be illegal because companies have a right to try to send me information or inform me of their products, but I also have a right to block them. The problem is that client-side computing seems to be lagging behind. Once an effective local video+audio filter is invented, it's either game over for adware or another arms race will begin where humans and classifiers can't tell what an ad is anymore (this has already run to completion on many platforms like Reddit, Amazon, and Google Maps anyway).
Criminalizing information flow is a non-trivial problem that I wouldn't want governments to be in control of.