It's 100% not a conspiracy and you can go back to find many climate organizations have been infiltrated by agent provocateurs since the 70s. The FBI sent a guy in had a kid and pulled him out leaving an entire family. Industries have lots of leaked documents showing their support for these groups because they're so unpalatable to the average person.
These groups behavior often make it harder. It distracts from the fight and puts a giant clown hat on the whole issue. People will argue "it's not permanent damage" without realizing the point that underlies that. This is about image. Its not about actual effect. Image is valuable and these people think that damaging the image somehow is the key to action because it gets people talking. Its not the 70s anymore everyone knows. We need these groups to be more self aware and create civil action to get people on board instead of making it unpalatable. Or just stop and give room for groups or drive positive change.