I mean, it works by your logic. Carbon caps are very easy to game and continue to fail to change behavior, as shell companies simply "sell" their credits to others. Meanwhile, sabotage materially - as in not on paper, but physically in rhe flesh and blood world - makes polluting more expensive, because equipment gets damaged, needs repaired, and might not get repaired. Even supressing it isn't free, because cops and bribes lobbying costs money and as we saw in the 2020 uprisings the cops cannot be everywhere at once.

Were there a protacted, popular campaign of sabotage that called the state's bluff, there simply wouldn't be enough police or resources to actually make any of this profitable. Actual concessions would have to be made by governments and corporations. This is why the state has been so spectacularly violent against climate acticists despite even green scare "ecoterrorists" simply tying themselves to trees - it actually works. The state belongs to corporations and corporations aren't going to just let us do shit that meaningfully undermines them, if they are actively suggesting the solutions themselves then it's because they know it won't require them to do something they don't want.