Instead of protesting, go setup a humane kaporas at a 10% premium and see what happens?
I'm not protesting (unless this counts) and it isn't my minhag to do kapporas with chickens.
You cant expect a non religious Jew or non Jew to open a humane kapporas center, that would be absurd.
IIRC in some seforim there are examples of rabbonim abolishing the minhag when there were rampant problems with shechita. It's really important keep the minhag however possible, but how long does there need to be rampant violations of Halacha in places like Brooklyn before you rethink your stance?