The phrase "unwitting accomplices" refers to people who unknowingly or unintentionally help someone commit a wrongdoing or illegal act without realizing they are involved. Full definition
Interspersing his narrative with tales of drowning islands and melting glaciers, he also fingers myopic journalists and environmental activists as unwitting accomplices in allowing global warming to go unchecked. (discovermagazine.com)
The politicians and the media don't really know as much as the people pushing the buttons do [humanists], so they are almost unwitting accomplices in breaking down barriers which will eventually lead to people being more vulnerable than they are today. (totalpolitics.com)
According to Klein, the frightening nature of the issue is the reason so many people have remained frozen, feeling powerless and incapable of doing anything meaningful to help, thus remaining unwitting accomplices to those who support the status quo. (gracelinks.org)