This is not credible without evidence.
If you find that not credible, you haven't been paying attention - reddit is a leftist cesspit echo chamber, and the only way any dissenting viewpoints survive is through having an absurd level of micromanaging and moderator involvement, like r/conservative, or being so small as to fly under the radar and not attract notice.
Centralizing forums to reddit was one of the worst things to ever happen to the internet, in retrospect. We should have stayed diverse and decentralized, and leaned into federation style community links, and made it easier for people to navigate and surface interesting unique communities, independent of the arbitrary politicization and ideological nonsense that infects reddit.
For example, supporting Trump is fine. Repeating what Trump says might be against community guidelines. Not because being a trump supporter is against the rules, but because trump sometimes says blatantly racist things, and that IS against the rules.
It's simple to be both conservative and not rude, nasty, racist, sexist, etc. Many influential conservative voices struggle with this. So they get banned, and, by value of following their lead, their followers.
Another example, on a bigger scale. Trump can be upset about losing an election. That's allowed. But Trump cannot advocate people go cause violence because of it. That's not allowed, and we had days in court because of that.
For the irony-cherry on top, repeating what he says is also often against r/conservative guidelines - they'll happily ban you for it, because a lot of the things Trump says are also really fucking stupid and contradictory, and his supporters don't like to be reminded that the emperor's naked.