I don't think that all remainers are automatically calling for a second referendum and I recognise the difficulty of assessing how much impact any illegal activity had on the final result. However if you do nothing in response to proven examples of breaches of rules you are effectively saying...
Pretty much sums up my view. I have never had a problem with a democratic consultation (parliamentary vote or referendum) on the terms of exit as this is a second question and a natural consequence of the process initiated by the first vote but the thought of a re-run of the first vote is not...