I think you are conflating corporation with limited liability. Corporations are “people” because they are associations of people. Most of the rights you have

I think you are conflating corporation with limited liability. Corporations are “people” because they are associations of people. Most of the rights you have as a person also apply to groups of people (for good reasons). Limited liability is a more simple trade off. They allow for large scale enterprises (generally corporations), as without limited liability if would be too risky.