Their problem with JNU students is not about any "anti-national" slogans. It's the jealousy about having fully functional spines which won't bend in front of their masters.
It's the height of ridiculousness that even in the brink of 2020 one has to explain how reservation is not a poverty alleviation program but about representation. This 'ignorance' is not organic, it's intentionally sustained by those who were in power all these years.
It's not like this distinction is so nuanced that people can't understand it. It's just that they don't want to understand it and more importantly, they don't want others to understand it.