Why are you conflating a traditional principle of jurisprudence with the right to free speech? These are entirely separate topics.
The point was to publicly challenge the people that work for the surveillance-industrial-complex. That is simply free speech. The other party has the right to yell back if the desire, or to simply leave[1]l.
All tyranny needs to gain a foothold is for people of good conscience to remain silent.
I fear that a lot of innocents will be hurt because of
your support that you give by
choosing to let these problems pass without challenge. Why should you expect anything to change when you withhold the necessary feedback necessary to correct bad behavior?
There is a difference between crude or vulgar name-calling/insults and challenging someone with language that is frank, strong, and maybe a bit rude. One is just trying to make people angry and the other is seeking to throw a bucket of cold water onto someone's naive or harmful point of view.[2]
[1] Free speech doesn't guarantee you an audience.
[2] Failure to understand this distinction is why some people perceive Linus Torvalds as being rude and "foul mouthed".