Although the Black Family placed great importance on Pure-blood male heirs, there had been two precedents in the Black Family's history of disowning male descendants.
One had been disowned for being a Squib, while the other had been disowned for supporting Muggle rights. It was clear that the Black Family's obsession with blood purity had taken root deeply on a psychological level.
Even for a male heir, even if he merely supported non-Pure-bloods, so long as he refused to repent, they would still disown him.
The Black Family's motto was even "Always Pure."
And setting aside the Black Family's internal reasons, with the family having almost entirely sided with the Death Eaters, Big Black had become far too conspicuous. Keeping him around would be a tremendous danger to the other family members.
From that perspective, as long as Big Black did not change, Orion would have found it hard not to disown his son.
Under Voldemort's watchful eye, Big Black would either be killed or disowned. If he wanted a third option, the Black Family itself would have to fall, with a Dark Mark floating above the Black Family's ancestral home.
Aivina sighed as she listened, but these matters had nothing to do with their family. Listening was enough.
In times like these, who could say that the side they had chosen would definitely win? Even if it did win, who could guarantee they would live to see the final outcome? It was nothing more than placing one's piece without regret.
Neither choice necessarily led to a good end, but switching sides halfway through would certainly end badly.
After dinner, Manus glanced at the hot cocoa in Aivina's hand... Several melting marshmallows floated in the already thick, cloyingly sweet drink. That level of sweetness was simply too much for him.