Yup; the grandparent is likely on a List already for being involved in child pornograpy and such (inadvertently, but you know that's a big part of what TOR is used for).
Citation needed please.
That's the juicier stuff that makes its way into the news. "A person living under an oppressive government evading censorship" will never be as juicy to write about as "murderers for hire on the dark web". That says absolutely nothing about the actual usage of Tor, so I'd like to see you back up that "big part" part.
It bothers me when people draw badly considered conclusions from them, such as claiming that "most" or a "big part" of Tor is dedicated to illegal activities. The percentage is probably greater than on the "normal" web, but I object to the stronger claims than that.