The ECHR is pieces of paper with writing and signatures on them.
Pieces of paper aren't animate. They don't speak.
Every aspect of employment rights, family law, human rights, civil rights etc etc in the UK is governed by UK legislation which incorporates the UK's obligations as a signatory of the ECHR. That's the Sovereign Parliament, enacting legislation voted on by UK MPs, who in turn are acting on behalf of voters.
But you go ahead and rant about the European Court if it makes you happy.