Anyone terrified of having/raising a child with our world in this state?

I have been married for five years and have been trying to have a child the entire time. We had a miscarriage a year ago and we’ve been trying a lot again. I have this urge to be a mother but I am almost terrified to put my future child through the hardships of today’s world. Plastic in the ocean, starving people, animal extinction it is almost too much for me to bare. I’m a work professional and this Saturday I found myself sobbing in my work bathroom because I saw a damn National Geographic video of a polar bear starving. Am I selfish for wanting to have a baby because of my personal urges? Am I selfish because I am not adopting? Am I an asshole because I think having more than three children is morally irresponsible? HELP I am a HOT MESS