First of all - facebook reeks with stupidity. Every day I am there I see at least one person so stupid I feel turmoil growing in my brain. I won't even start with trolls, even I am in the facebook group where there are many unfunny trolls attempting to derail everything they don't like. 

Now that it was clarified - time to have fun with amazing logic of first commenter: yes, foxes kill chicken, they are also likely to kill other animals. But... who else does it? People. Now by that logic why won't we enforce euthanasia on every person who is in the hospital? After all 1 human = many dead animals and where fox does it for survival some people kill for entertainment alone. 

Hunting foxes as a thing though... it's complicated. In Poland we have currently issues with fox population which increased due to the fact people started curing their diseases which kept their population in check in the past. Now there are more and more foxes and they all need to eat. That led to reduction of population of other animals and not just chickens. I may hate hunting, especially the way it's often done in Poland, but something must be done in order to fix the problem. Otherwise both foxes and other animals will have real survival problem. In my opinion foxes should be just left alone. Other animals too while at it. Diseases are nature's way of population control and now that people tried to tamper with it they've only created new problem in my coutry.

And tbh... I am pretty sure all of them are trolls. They should be glad I label them as such, because otherwise they are idiots and hypocrites.