I'm anti-Brexit (not that it matters, not British) but also pro-referendum in general. One modification I'd like to see is higher thresholds for more significant actions, especially ones that are difficult to reverse like this was. I don't think something as huge as Brexit should be decided on the basis of 50%+1. There should be a bias towards the status quo, and this should require maybe 60% or 2/3rds to overcome.