Does this make sense? does everyone think like this?

Am i dumb or am i smart? People hate me cuz I say mentally retarted people shouldnt live cuz all they do is eat food that we could be giving to starving children, and they dont provide any use for society except giving jobs to teachers, who could simply get a different job and help the world. People hate me cuz I say that lawyers and businessmen and any non-science related jobs are practically useless. I mean seriously, did you know we can travel thru time and go to different planets... Once the sun blows up defending mcdonalds in a sueing case doesnt matter much, AT ALL. Why not explore space? biology? and psychology.... why worry about such trivial things. People hate me cuz i dont agree with america's descicion to allow hummers and other fuel sucking machines to be on the road, they argue, its america, we are free. You do realize 2,000 species go extinct every day! Even if there tiny little insects, still, what if the fruit fly went extinct? they help with genetic engineering, every species has a use. What if the DoDo bird (went extinct in 1681) had a specific type of fluid or genes or somethingthat ONLY it could make, and that particulary fluid/gene/ or watever cured cancer! Now cancer is uncurable and people die. Am I wrong? I mean theres so many uses for the species going extinct. Which bring up my next point, people hate me cuz I get mad at people that have like 8 kids. You do realize the population of the world is approx 6.8B people. Now if i had a dollar for every person.... but seriously, if the population increases (as it tends to do) to like 20B people and everyone eats a pound of food a day, and cars keep driving on loads of fuel, were all going to die, the rainforest will deplete, the ozone layer will fly away, and there will basically be ONLY artificial plants left. AM i wrong? i mean seriously, am i wrong for thinking this? the truth?