Earlier quoted context omitted.
It might not be the best comparison, but OP was on-target with their last sentence: "Who defines what is considered terrorism and what isn't? Once censorship infrastructure is in place, it will get abused." Today, it's ISIS. Well, that's OK -- they're clearly terrorists. Tomorrow, it's the KKK and White Supremacy groups. Well, that's OK too -- they're racists. Next month, it's climate change deniers -- that's probabl…
If the slope were that slippery, you couldn't do anything: "Now you want me to do the dishes. But if I agree to that, you will soon ask me to build a spaceship!"
Just within the last 17 years, we've seen plenty of examples of events and behavior that at one time would have been considered unacceptable or shocking become normalized and "par for the course".
That we have shiny beeping toys and a broader vocabulary to describe aspects of human behavior today doesn't change the fact that human behavior itself hasn't changed in a long, long time.
That which can be abused, will be abused.