Perhaps the worst that could happen is that the government ends up ordering a massive crackdown, complemented by cover-ups, demonization, and frame-ups, as it was between 2010 and 2019. In terms of numbers, the student movement in Thailand has successfully mobilized 10,000 to 20,000 people to take to the streets, posing a huge threat to the legitimacy of the authorities.
The government must more or less take telemarketing list care of their demands, but this is not enough to cause regime change. How to get more people to join this movement is beyond the reach of my brain, but it is imperative if they are to achieve their goals. Another problem is that Thailand's right-wing media often spread some news about suspected infighting within the student movement. As an observer, I do not want to discuss the truth of these rumors.
What I can say is that in any event, the debate to find the best course of action is all too normal. Sometimes personal factors even get in the way, such as jealousy, competitive mentality, personal interests, unequal treatment among colleagues, etc. Ideals and beliefs in democracy unite them, but that doesn't prevent things from getting out of hand sometimes, the question is how do we fix it.