1) Grave worship and erecting graves are two different things. The quote you were responding to of me said I have a problem with grave worshipping sufis (i.e. false sufi claimants) so its a different topic to demolishing graves 2) I agree, you need to teach tawheed, I would assume that ansar ad din are doing that inshAllah and not just randomly smashing things 3) I agree vigilantism is not allowed in islam. We can speak against it with our tongue though inshAllah 4) If you are the ruler and you wish to act upon the ahadeeth ordering the smashing of tombs and you wish to act upon the opinions of the salaf I have mentioned ordered the smashing of tombs then this is why you would smash the tombs. We must respect the legitimate opinion they are following inshAllah 5) You have to define what you mean by "militant". "militant" and "dictatorship" are western terms and have no basis in the shariah. All a ruler simply needs to do is implement the hukm of Allah. This may involve "education" and it may involve what the west may describe as "militant" activity in the way of enforcing Islamic rules on the people. This is how it has been from the time of the prophet SAW right up until the time that the final handhold of Islam was broken (i.e. the hukm of Allah)