I would translate James 2:6-7 like this:

⁶ But you mistreated the poor man. Is it not the rich who oppress you, and they who drag you into court? ⁷ Is it not they who blaspheme that good name ‒ the one after whom you were called?

Reasoning:

I would translate James 2:6-7 like this:

⁶ But you mistreated the poor man. Is it not the rich who oppress you, and they who drag you into court? ⁷ Is it not they who blaspheme that good name ‒ the one after whom you were called?

Reasoning:

ἐπικληθὲν could just as well been given as "upon being named", but I felt "Is it not they who blaspheme that good name ‒ the one after whom you were named?" didn't read as well as how I've given it.