And that would be scary to me.

Does anyone trust Labour or the Tories to setup a British Human Rights law?

Absolutely.
There's always in any treaty or final details of things, some parts which may be irritating to some Nations.
However once you start picking only bits of treaties and rulings then you wreck the original needs and securities for everyone.

The ECHR was set up to protect.
Those who now want to leave it are likely going to take the UK down a very dangerous path.
A path once used which could lead to much worse too.

This is the Cons now via Johnson again, still running up the backsides of the destructive Reform party lot.
Just leave the ECHR as it is and was intended.
I wouldn't trust a British human rights done by the Cons or Reform.
In fact I wouldn't support one off Labour either instead of the ECHR which was created by far wiser individuals at the time, for a very major and important reasoning.