Males always seem to get the shorter end of the stick in the animal kingdom. They even sometimes end up dying during the mating process. The females just take and take and take and once impregnated, the males are unwanted and cast aside.
Then progressives invented the welfare state.
Well at least they don't have to pay maintenance and child support.
Well, certainly in many of the spider species’ case. Not so much with the non-arachnid/non-insect species. For instance, when a male lion/coalition takes over a territory, the cubs, sub-adults and even some of the unwilling female lions are killed.
Elephant and giraffe bulls just walk away, having nothing to do with their offspring. Many of the bird species are better with parenting (especially raptors), but a female African Hornbill is at the mercy of her mate after she plucks out all of her feathers, and he cements her into the hole of a tree for her time of gestation and post-hatching. If something happens to the male, she and the chicks will starve to death in their nest. What a way to go.