Your logic is faulty.
There are so many facts associated with the increase in greenhouse gases in the atmosphere, and especially carbon dioxide (which has effects beyond warming, like making the oceans more acidic), that the arguments against humans having an effect on the environment just sound clueless. Ignore global warming; do you really want the oceans to become more acidic? We might live with a warmer planet, but less productive oceans? That sounds worse.
While I am convinced the evidence shows that humans have changed the atmosphere and the environment (e.g. deforestation) in ways that increase the average global temperature, I would rather live with a warmer planet than go back to the 19th century. Or redistribute wealth in a way that kept Asia and Africa from becoming the carbon emitters they are projected to be. Perhaps I am too optimistic, but exponentially increasing technology tends to solve problems we thought were unsolvable just a few years ago. I remember in high school reading about the worries of another ice age. Now it's warming. Oil was going to run out. Wrong. Metals were going to run out. Wrong. Pollution in the US was out of control and there would be a Silent Spring. Wrong. Cars and trucks guzzled fuel and the auto companies said there was nothing significant they could do about it. Wrong. Now you can buy electric cars that get almost 250 miles on a charge, brake for you, avoid bad lane changes for you, and tell you how to navigate. It only took 40 years for a smart phone to make a 22nd century Star Trek communicator look archaic. IMO, nothing beats exponentiating technology. Of course, if you want to make that bet you need to make a huge side bet on science and technology investments. Too bad so many Americans are afraid of both.
(Extra rant - anti-science types always want scientific pursuits and scientists to be perfect. A few flaws in results or people and the whole of science is discounted. That's like looking at a down day on the S&P500 index and saying the S&P500 is a lousy investment. Looking at the S&P500 20-year trend line, anyone saying that sounds like a damned fool. The processes of scientific discovery and technology advancement are like that.)