Plausibility check: Confucian-Reactionary South Korea?

Anawrahta

Banned
With any POD after 1953, have South Korea adopt Confucianism as the state religion and adopt a "reactionary" to counter Communism? I'm thinking of regime similar to Francoist Spain, or if you want to go extreme, revolutionary Iran or Saudi Arabia?
Is this even possible?
How would the PRC and Japan react? Relations with DPRK would be horrible. How about USA? suspension of aid? Situation similar to Yugoslavia or Albania?
 
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