Some fun facts about legalism is It was introduced by Qin Shi Huang, its one of the four main philosophize, it is a political philosophy, and They would twist their arms and legs around a pole as a punishment.
Something they all have the same is they are all competing belief system.
Now what my opinion on the philosophies of Confucianism is that it should be considered a religion if it is part of a believe.
My opinion about Daoism is that they should keep it around for a long time if it's a tradition .
Now last but not least Legalism i think that it is a good believe and will help people later in the future.