Greekcypriots rejecting the UN plan will be interpreted internationally that they are not even keen for a settlement or probably they will think that they are racist and they do not want to live with Turkishcypriots . I dont say that this is the case but that would be the perception Internationally.
The whole international community has their own personal matters to care and personal problems that may not tolerate such approach.
Under the above circumstanses countries one by one will start to reconsider their approach towards the North Cyprus and end up with two independent states in Cyprus.
Ignoring the whole International Community and not even care to Listen what they do say or even think about our policies is not a wise option to follow and unfortunately this is what is happening in the South.
Sadam Hussein has ignored the whole international community and the UN for long time ago . And we see now the consequences that the Iraq faces .
Of course If the USA wished to benefit Turkey against the Interest of Cyprus USA could have done so very clearly by Recognising the TRNC long time ago.