National Socialism and International Socialism are just two different denominations in the same “church”.
The fight between them is of the same order as that which once existed between the Protestants and the Roman Catholic Church. Both obeyed the same deity, but were torn apart on doctrinal differences. Of course, the schism between the two branches never, ever, was as bloody as the confrontation between Josef Stalin and Adolf Hitler. But it went on for a lot longer.
Likewise with the Nazis (Fascists) and the Soviets. Vladimir Putin is just the person who has formed an amalgamation, and a “ecumenical” reconciliation of the factions.
That does not make the existential threat of socialism any less deadly.
The danger is that fascism is always the softer sell than communism. See my post above.