Would leaving the ECHR really 'stop the boats'?

In a recent discussion, Lord Sumption argues that the idea of leaving the European Convention on Human Rights (ECHR) to curb immigration is largely overstated. He suggests that the impact of such a move on immigration levels would be minimal, prompting a deeper examination of the real factors influencing migration. This conversation is crucial as it challenges prevailing narratives and encourages a more nuanced understanding of immigration policy.