The econmics don't work out for someone making a browser specifically for you and no one else. Products typically are designed to support the needs of many people instead of optimizing for a single person at the detriment of everyone else.
If that is the metric you want to go by, users outnumber advertisers by several orders of magnitude, so in this sense, anything that makes online ads easier is optimizing for the few at the expense of the many.
In any case, why in the world would I want to use a browser that is working against my interests and in favor of the interests of an industry that has done nothing but been abusive for a very long time?