Lordy, lordy

Peter Tatchell said:

"It's quite outrageous that the supreme court judges have a title system that discriminates against both women and gay people. The highest court in the land should reflect the principle of universal equality.
"Complicity with this discrimination sends out entirely the wrong message. When inequality is enshrined at the heart of the supreme court, it does not inspire confidence that this institution is committed to non-discrimination."

And why are we supposed to address and refer to high court judges as 'Lord'?  Let alone their wives and significant others as 'Lady'.