It actually doesn't matter what wing. Crapping on your own military as head of state is a huge no. If you have nothing good to say, just don't say it.Since this get attention let me clarify.
- Current situation is Thailand and Cambodia have another border dispute.
- Thai PM family have a deep tied with former Cambodia PM and act pretty weak in negotiation tables cause peoples on both left and right to accuse her of being traitor to nation.
- Thai PM and former Cambodia PM have personal phone conversation and it got leaked by Cambodia side. The conversation indicate that Thai PM are pretty much on Cambodia side and shit talk about military that oppose Cambodia at border.
So, now Thai PM got attack pretty much from all side. Left wing faction that are pretty anti-China and pro-US (support by NED) want her to dissolving Parliament because they will be able to take majority of seats. While Right wing faction want her to be replaced to prevent left from taking over and prevent Coup d'état by military.
This about as simple as I can make because there are too many faction with different interest at play in TH politics.