It does sound simple....but the first point, about leaving the ECHR won't happen, even if Reform get in at the next GE, they'll find a reason why they cannot simply just leave the ECHR - it will of course be everybody else's fault. As for point 2, it's been discussed to death by those who know more than you or I, that the Channel crossing being so short, is a problem in tracking the boats - by the time they do spot them, they're often already here. If the expanse of water was larger and wasn't' as busy as it currently is, then it'd be much easier to spot and intercept (apparently) The only real way to stop them coming, is to make it wholly unattractive to anybody who does make the crossing - at the minute, there is clearly far too much incentive to make the crossing, we need to remove that incentive.