@Rudderneck - you sound rather Bennite! In the "who are you and how do we get rid of you aspect in your post.
The ECHR is not a problem imo. It is classic externalising by British politicians when they have failed. International obligations are not bad in themselves.
The ECHR was our way of addressing the grosser depravity of WW2; in time it's obviously had to cover matters in Ireland where British treatment of the Irish needed robbed guaranteed because frankly there were times when we fell sort and breached our own convention. There have been other times, such as ensuring due process of law, ensuring that governments cannot change criminal sentences for their own convenience, or moments when soldiers can sue to ensure they are not given defective equipment in wartime when serving for the U.K. I remember these cases in part because the government of the day said soldiers did not have such rights, nor did certain groups in Ireland, or prisoners could be resentenced to meet a Daily Mail headline. They lost, as they should have done.
It sets parameters for the treatment of people.
Now, I think this system does very well against the abuse of the citizen. But I do thank you for your well thought out response because I understand it's origin. But I am just not satisfied that my own government, left or right, would respect my rights domestically without this bigger stick that is the external court.
In the end I believe you must look at the worst politician and say do you want that person with command of your treatment. If it was Braverman or Badenoch or Starmer or Corbyn. That prospect to me is more concerning because currently, under our system, there is nearly no way of stopping primary legislation being overwritten in what Halisham called "our elective dictatorship".