All closing the hunt accomplished is higher mortality for cubs,
Worth expanding on, because many of those who’ve hunted them even don’t understand it. It’s odd for us hunters to consider, said having hunted more of them than most, but consistently taking the mature males from a population doesn’t increase its health in the long term. Quite the opposite. Yea, in the near term it can result in more bears reaching maturity allegedly, but another male always takes the role if the king of the valley gets shot. Maybe he assumes the role before his natural time, but the position never goes empty. Because it’s their nature. Just as it’s our nature to desire to hunt, we evolved this way.
Cub mortality, as when a weaker sow isn’t able to successfully defend its cubs, is part of the system and makes sure only the strongest and smartest sows’ cubs, who’ve grown to the largest sizes out of the local cub population by that time of the year and are most able to escape, make it to adulthood. Alternatively, you often find a sow way off into new territory when they have very small or immature cubs, or they themselves are small or undersized. We found this in small rivers and valleys with small salmon runs the big bears ignored, chasing the bigger fish so to speak. This spreads out the population and creates reservoirs of different genes, too. I wouldn’t be surprised if the Vancouver Island grizzly population started this way, pushed out of a higher density population.
We don’t like it, but it’s part of how grizzly bears keep their gene pool strong. In the end it’s no less ugly in reality than Americans travelling up, or you or I heading out to shoot them, it’s all relative. When you look at how grizzlies manage their own genes and populations from afar, it’s actually quite impressive. We anthropomorphize them and see cub predation as ugly, when in reality, it’s a hard way to a noble function even if they bear doesn’t know why he’s doing it. The bears don’t hold the same grudges we do, you’ll see a sow who had her cubs killed willingly mate later with the male who did it.
I think it’s important we understand the life cycles and habits of the animals we’re out there with, and be careful not to vilify behaviour we don’t understand too quickly. Killing cubs doesn’t make a grizzly boar bad, it just makes him a dominant grizzly doing what he’s evolved to do. I’m not arguing your following points, just this one is poorly understood and I’ve singled it out for a better look.