In the Western so-called democracy only the party who forms the Government chooses the PM albeit coalition vote for the PM but yes the unelected Thai ex military Senators can control against the wishes of the vast majority of the population. How absolutely ridiculous and was not it framed and did people vote for it or did not understand or forced in to voting for it?
Unfortunately, like in the war mongering USA and UK they do whatever they want but on taxpayer money who keep the Elite and military in their luxury plastic bubble world.
The politicians the World over are exactly the same pure scum and vermin and some newcomers come in with good intentions and then the systems which are rigged then have 3 line whipp.