[Novashi]

>The protection of speech is the reason you are being banned.

That makes no sense. You're getting banned for breaking the rules, but lets not pretend the rules were written with the spirit of speech protection in mind.

The rules exist because "we want this community with this content because reddit says we can enforce arbitrary rules in our own gardens". That can include, e.g., only having positive opinions of Trump, so we can ban all negative opinions of Trump.

[Mirioron]

Yes, you're right, but this is something the moderators of the subreddit decide, not the admins of reddit.