[moftz]

The issue with deer is that there are too few natural predators for them in many places on the east coast. The booming population has detrimental effects on the forests. Deer consume only certain plants so they end up causing lower diversity of eastern forests. When the decision is either cull them now or let the population starve until it gets back to a comfortable capacity, it's much better to cull them. This not only helps the surrounding ecosystem but also gives some people the chance to get large quantities of meat for almost no cost. Some people in the US really do still live off the land to an extent, meat is much cheaper when you kill and clean the animal yourself.

https://blog.nature.org/science/2013/08/22/too-many-deer/