I think your missing a bit:

From Wiki: “Censorship is the suppression of speech, public communication, or other information.”

The relays are all private & so is Amethyst I do believe. Build your own in an open environment.

The simile: its like a pear farmer saying apple farmers are censoring the pears. No, grow more pears, or eat them apples.

If Amethyst is censoring the user base, the market will decide if it continues.

There is freedom of speech not consequences.