Curation is not, has not, and will never be, the bar for determining what is and isn't a platform or a publisher. Curation is an expression of free speech, which is different from the role a publisher plays in works it publishes.

Your entire argument hinges on people not realizing there's a specific legal definition of the word "publisher", which means that no matter what politicians you convince to do what you want, it will never function as expected in the judiciary.