Ads and the surveillance ecosystem are more than just a company sending you information. They're paying another company, which that other company uses to provide services below cost (often free, and often creating network lock-in effects), which is clearly an anti-competitive business practice. Ads completely destroy markets they operate in.

"companies have a right to try to send me information"

The problem isn't one company sending information unsolicited, it's when hundreds of thousands of companies flood every communication channel with their own unsolicited advertising.

Email, phone have become unusable channels, not to mention much of the web.