Shunning is monstrously different to killing. It's silly to even compare them.
Tons of people reject the religion of their parents and are estranged from them for life, while still having a great - and in many cases markedly improved - quality of life.
> Tons of people reject the religion of their parents and are estranged from them for life, while still having a great - and in many cases markedly improved - quality of life.
And tons don't, and other tons do, but have a miserable life as a result.
They'll be glad to know that you belittle their situation.
Since honor killings happen in countries such as the UK....
Even if you're going to argue "it's a choice because it's not civil-legal to kill apostates", it's certainly "civil-legal" to shun them.