I admit I'm not an American citizen, and have never actually stepped foot on American soil, but I do see the "first amendment" and "free speech" arguments being trotted out for almost anything that involves communication between two parties being restricted. This, in my experience has been common in (privately owned) web forums when an American user is banned for misbehaviour, or rules are changed to prohibit certain types of content or speech on those forums.

The text of the amendment, as I'm sure you're aware, reads as follows:

> Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.

I admit I fail to see how this prohibits introducing a law preventing an organisation from collecting data from individuals without them explicitly opting in to it.