I would say a true centrist is nothing. No beliefs on whether the means of production should be held by private companies or the people. Aka, they either cannot exist or have not formed an opinion on it making it so that their opinion wouldn't matter.

The problem therein lies that we try to tie other things into it that aren't about government, and instead about human rights, and it clearly diverts from being a line to a multi dimensional graph that all means next to nothing when it comes to claims like left right.

Both someone on the left and the right can want to subjugate parts of the populous without having to leave their belief on who owns the means of production.