These are crimes on a massive scale that helped contribute to the collapse of the socialist bloc and to the period of vicious reaction we currently live in. They aren't just 'mistakes', and if you understand them as seriously as they should be it makes sense to question the legitimacy of the socialist project
pointing out foreign policy mistakes is significantly different from claiming that deng executed a coup that made china capitalist
These are crimes on a massive scale that helped contribute to the collapse of the socialist bloc and to the period of vicious reaction we currently live in. They aren't just 'mistakes', and if you understand them as seriously as they should be it makes sense to question the legitimacy of the socialist project