"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."
This is all anyone needs to realise they did not intend corporations to have special rights to have their right to speech defended.
The founders singled out ONE industry for obvious reasons.
They could have said all corporations in all fields if that was the intenet.
They did not.
they mentioned ONLY one industry.
Freedom of the press was the only exception to Human Beings they intended.
Take your lithium, huh?