Why is Brazilian Jiu Jitsu so terrible?

I learned Brazilian Jiu Jitsu myself. Brazilian jujitsu originated from Japanese judo, but compared with judo, it pays more attention to twisting and joint skills, and belongs to close combat. Fighting is generally divided into three forms: long distance, middle distance and short distance. Judo and jujitsu belong to the short-distance close combat system. Your so-called "entanglement" is called "suppression" in Jiu Jitsu, which is the basic technique of ground fighting. Entangling others or preventing being entangled by others is the most critical stage. If you want to crack it, you must also know Brazilian Jiu Jitsu. There are three main attack positions in ground combat. It is possible to crack it at the stage of suppression technology. Of course, this layman may not be very clear. Here is a brief introduction. If you want to know more, you can continue to ask. Your so-called broken hands, feet and even neck are all "twisting skills" and "joint skills", usually based on dislocation of joints. Bone fracture technology should not be allowed in competitions, but it can be used in the army. Generally, you don't twist your neck, but you will die if you twist your neck to the carotid artery and squeeze it. But usually you don't break your neck. Of course, there are several moves in this respect, but it is difficult for ordinary people to master them. As for wrestling skills, jujitsu is not as diverse as judo. In short, if you want to crack Jiu Jitsu, one is to avoid short-distance fighting with your Jiu Jitsu opponent and don't give him the opportunity to use these close skills, but this is more difficult. The second is to learn the anti-technique of Jiu Jitsu and Judo, that is, the way to get rid of it, and crack it in the early stage of the opponent's attack, and you will understand it when you learn Jiu Jitsu. Of course, the most important thing is to look at speed and reaction.