@ Why_Do_I_Die
At least you seem to be aware.
BUT, it makes no sense to be rude to others, especially when they need to see what you see, in fact it will turn them away from what you have to say.
Just say what you have to say, and leave it at that.
People travel this path of life in their own time, and those who are ready for what you say, will at least start to think about it, those who are not, will not be convinced by any rudeness or anger.
So just give the info, that is what makes the world(people) change, little by little.