Reminds me of "reality has a well known liberal bias"

Or "anything left of right is left-leaning", I suppose. It's the Overton window and the steady decline of moderation; centrists are wrong no matter who you ask ("pick a side you coward", "silence is complicity"), moderate Republicans are RINOs, Republican In Name Only [0], and their disloyalty to the Party is shamed.

[0] https://en.wikipedia.org/wiki/Republican_in_name_only