CRT is defined precisely though. It is the application of collective guilt based on skin color for the actions of individuals with the same color skin. It is similar to the Stormfront crowd blaming all black people for violent crime. It's inherently racist.
Critical theory in general (not just CRT) is an attempt to use a marxist lens to view <insert social issue here>. This is why collectivism is central to CRT.
This is why we read nothing but race-based assumptions from proponents of CRT. It's a framework that requires us to not consider the content of ones character, but rather the color of their skin.