Or, it may convince the Red Shirts that if they want to form a government, they need to win an election.
If the situation in Thailand is best decribed as the Shinawatras buying the support of a Red Shirt majority by by extracting funds from a Yellow Shirt minority, then your advice is not particularly helpful. If.
Sounds like they needed a coup to prevent the deleterious effects of a democratic tyranny of the majority, which it seems are uneducated rural peasants. The hoi polloi won’t like that the demagogues they voted for were ousted but if the generals can reform the constitution, it will lead to greater stability for the nation and more security for the productive classes.