I used "disrupted" as that is the language that is used to describe these actions. When you disrupt something, you increase the likelihood of something non-standard happening including accidents. I believe the narrative was that if drivers can not pay attention to the road and keep control of their vehicles, then they should not be driving.

This was something that people decried about during the BLM and Stop Oil protests, see below for some of the accidents caused by those actions:

>M25 Police Motorbike Crash (November 2022): An Essex Police motorcycle officer was injured in a collision involving two lorries during a rolling roadblock. The roadblock was set up because Just Stop Oil activists were trespassing and climbing onto overhead gantries along the M25.

>Greenpeace bridge protesters blamed for crash on Fred Hartman Bridge https://www.khou.com/article/news/local/greenpeace-bridge-pr...

>Crash data raises safety questions about bridge protests on I-40 https://www.carolinajournal.com/crash-data-raises-safety-que...