You should separate the technics used and the purpose they were serving in that particular context. If democrats and remainers had not underestimate their opponents and take this seriously they would have the same technics. Technics exist, they are part of the world we live in, they are not new. What’s new is how smartly that have been used here. I am telling you as a proud french who just elected Macron crushing the Trump-Brexit like rival M. Le Pen.