From a European perspective, the US centre-right are more conservative than the European fringe right. The European far right doesn't (typically) want to restrict abortion, sabotage education or reinstate child labor for example. And are mostly about increasing and militarizing police, disenfranchising minorities, and different schemes to control that only the right people get to vote.
I'd argue that the US centre right is actually as radical, or even more so than the European fringe right, they are certainly causing about the same commotion, but of course have much more power in the US.