Karenni nation-state in Burma after WWII

Is there any way that, instead of the Karenni state being incorporated into Burma by the 1947 Union, a Karenni nation-state could've been carved out of Burma after WWII, based on the British treaties of the late 19th C recognising their independence & the British recognising the legacy of Karen loyalty against the Japs during the war ? Wwould the Burman genocide of the Karen have still been orchestrated ?
 
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