Has the penny dropped with people that we cannot deport people as we like whilst the ECHR has legal jurisdiction over us? Yes.
Have we left the ECHR yet? No. Why not? Because the current government (and those that went before it) lack the balls to do so.
Once we've left it, suspended our membership, passed UK laws to allow us to ignore it, or whatever... Then we can start tackling the problem.
Of course we can deport people if we want to.
This is a solution in need of a problem which can be addressed in a variety of different ways.
The first thing we'd need to do, should we be serious about leaving the ECHR, is to get a written constitution in place, which would safeguard our rights.
No ECHR effectively equals an elected dictatorship and, considering the quality of politician on show, is not something I would welcome.
Denmark and Sweden have managed significant reductions without leaving the ECHR, and our problem seems to be Article 8 which we could derogate, if we're facing an 'influx', as is described.
The UK could then be at the forefront of reform of the UK, of which there has never been a greater appetite across Europe, rather than taking the Brexit approach of saying 'we are off'.
Finally, whilst proponents of leaving the ECHR will tell you 'we managed for years before the ECHR' and that is, in some ways, true, the real danger is when there is rhetoric and panic similar to today.
In the 70's Lord Scarman said:
“When times are normal and fear is not stalking the land, English law sturdily protects the freedom of the individual ... But when times are abnormally alive with fear and prejudice, the common law cannot resist the will, however frightened and prejudiced it may be, of parliament.”