Aum Neko, I'm afraid that the Thai junta will do the opposite of everything you said.
I think Thailand will change to republic (without monarchy) eventually.
Anyway, I will not do anything to change. I will not tell or give any information to Thai people. I will let Thai people find information and make up their mind by themselves.
Nowadays, there are many Thai people have already realized the dark side of the monarchy. The amount of such people will not decrease or even be stable, but it will have been rising everyday based on the truth which is not concealable. Finally, the royalists will become a minority in Thailand.