Corporations are not people. They are granted a subset of the rights and responsibilities that people have. This includes obvious things like the ability to e

Corporations are not people. They are granted a subset of the rights and responsibilities that people have. This includes obvious things like the ability to enter into a contract, the ability to be sued in court, the right to own property, etc. They don't have all of the same rights that people do (e.g. they can't vote). But that's just pedantry. The real issue is that your solution is far too broad and is likely to have unintended side effects. We already have laws curtailing speech of both people and corporations. Free speech is not absolute in the US. We already have "misleading advertising" laws that have been used successfully against corporations. You can solve this problem if you want by just expanding the scope of existing laws. You don't need to abolish corporate personhood to achieve it.