That's politics, plain and simple. Rarely rational and subject to superstition, faulty logic, knee jerk reactions, raging emotions, sacred cows, misinformation, outright greed and all the rest. We've been muddling along for a quarter-million years or so, but we know we are running out of time, space, and resources. Either we get it together, or we don't make it. Read history and archeology: there are lots of civilizations that couldn't cut the mustard.
And it is difficult for each of us. Trying to get by and make as little impact as possible is a daily challenge. Everywhere you turn there are problems, from the food we eat, the packaging it comes in, the electronics we love so much, transportation, energy, urban planning, resource management, population control, human rights, religious freedom, species extinction, international relations, pollution, global warming, terrorism, poverty, employment, medical care and ethics. If that list doesn't raise your blood pressure, you have better drugs or meditation techniques than I do. May you live in interesting times indeed!
So your question: Where do you draw the line and how do you get your point across?
Act on good information
Walk the talk
Do the right thing
Do the best you can