This is troubling, but not for the reasons you may think.
Yes, neo-nazis and other white supremacist groups are a problem, but even more troubling is this is reported as gospel even though it seems largely anecdotal.
...but this new energy hasn't necessarily translated to an increase in the rate of hate crimes in the U.S., according to some researchers.
Why not? If experience tells us anything, it's that fringe groups, when energized tend to act. There is no indication of any increased organized activity from these groups. Further, the only "researchers" quoted here are from "The Hate Crime Research Network" and "The Southern Law Poverty Center". Neither of these organizations would exist without white supremacists.
This is the most troubling aspect is here:
"The evidence of hate speech is a very poor predictor of violent tendencies..."
Then why are we bothering to regulate it?