Life is not always fair, and we don't live in an Ideal Universe.
Battery hens have a much sadder life, and there is no revolt happening against that. I do like the idea of rescuing battery hens. A certain member from UK, does such. I could tag him,,,, but it is not that important.
Just raise and nurture

the pets that you have.

It is a much better option than the alternative. Meaning,,,, soup
As to the wing clipping. Try one wing at first. This makes for a lopsided flight, and not able to make over fence. Cutting wing feathers, does not hurt. Just make sure you don't cut too short and into the blood vein. If you are ready to do such, I can show you diagrams on proper clipping.
BTW,,, Guineas do like to eat ticks.
