Radical leftist have more in common with far right-winger than with the "normal" left

So maybe i'm breaking open doors, but the more i think about it the more i think that people, and especially radical, have more in common with ones who are in their reflect position in the political spectrum rather than with people who are adjacent.

political spectrum being : Far left - Left - Center left - Center - Center right - Right - Far right, the mirror point of course being center

Of course i'm more talking about behavior and thinking method than what we defend.

Even in the center it checks out because most people on this sub seems to be center left or center right, and "true" centrist ends up on r/ENLIGHTENEDCENTRISM .

So am i the only one thinking that ? Or maybe it's so obvious that it wasn't worth pointing out...