Is the First Amendment history now?

Just consider what has happened in the last few days:

1. Twitter bans Trump for ever.
2. Parler gets shut down by concerted actions of Amazon, Apple and Google.
3. Simon and Schuster drops their book contract with Josh Hawley.

There are many more instances.

The First Amendment reads as follows:

“The First Amendment states:

“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.”

Can you explain how the above actions are consistent with the First Amendment? If not, should we consider the first amendment dead?