if you don’t start with the absurdity that the NK actions (whatever you might be referring to) are “unsavory”, you would have no reason to think there is a distinction between NK from 1950s and NK today.
NK today is of the same ideology of its predecessors (unless you can point me to some distinction), is led by students or students of students of the original founders ztz”l, and continues to exists in Palestine, Europe, and North America as a singular group that shares a unified ideology.
So, forcing readers to prove a negative to repel your baseless claims against a group of apparently kosher yidden is not only dishonest, but motzi shem ra. It is possibly also masis imadiach as it pushes yidden away from real Torah views (but I’m not sure if internet comments are masis or if they are madiach, H”Y)