(Original post by HighOnGoofballs)
So you're problem is that a democratically elected government can make laws?
No, my problem is that you just pulled a big fat straw man on me.
So people elect a hypothetically hugely majoritarian government, then the government, using its populist political capital seizes the judiciary (appointment of supreme court etc...), creates laws as it mays and threatens its opposition through wielding the power of surreptitiously used death-penalty. That's the problem.
The problem also lies when society makes arbitrary moral judgements and uses the death penalty to steal the life of an otherwise innocent individual (take death penalty upon gay sex as it happens in many religious-majority countries).
Don't say this kind of stuff doesn't happen, it has happened in South America and Africa too many times to count in recent history. I should also add that in many countries minor treason is punished with death penalty as well.
Of course the UK isn't Africa or America, but this kind of turn of events has happened in European countries in the very recent past.
This is why death penalty is wrong in principle, because it places the life of a human at the mercy of society. This then causes multiple metaphysical disparities: what is the point of "always protecting life" in medicine, if society decides which lives are worth keeping?.