The Purpose of Right Fascism is to punish opposition to truth, reciprocity, duty, family, nation, and continuously evolutionary and eugenic civilization.
The Purpose of Left Fascism is to punish truth, reciprocity, duty, family and nation to produce continuously devolutionary and dysgenic civilization.
There is every reason in the world for the left to suppression Truth, Reason, Reciprocity, and Science. Dysgenia is in their reproductive interests.