Sadly, if you look around the world today, there isn't a whole lot of effort put into "unifying."
The United States has slowly but surely been splintering for at least two decades. Globalization, supply side economics, and income/wealth inequality did not just spring up....decisions made decades ago have brought us to the point we are today. Barack Obama could have been a unifying leader but sadly all the special interests in the United States refused to be led. So now we are facing a choice between Trump and Clinton.
Realistically, someone within the military will have to step up and unify Thailand by slowly implementing democratic reforms. The military has to realize that it is in their long term self interests to do so.
Sadly, very few leaders see "win-win" situations because power distorts perceptions by presenting everything as a "win-lose."
In Thailand you have the admired King of 70 years who made a choice in 1972 and that was the Crown Prince. Then you have the unmarried Crown Princess who technically is a viable option with the change in the constitution in 1974.
Sadly, one choice honors the wishes of the King while the other, honors the respect for the King.
I just wish that the folks with all the power take their responsibility seriously and make decisions today with a realistic vision of the future...
But looking around me I cannot help but realize that does not happen all that often anymore.