I don't know much about any of the gamergate stuff; most of it I feel is just a lot of hot air (pun intended). But I'm going to disagree with you on gas prices. The U.S. is the worlds greediest oil consumers by a large margin. We use about 20% of all the oil in the world daily. Not only that, but gas prices in the U.S. are much lower that that of the EU and many other countries. It's insanity to think that we can just keep up this current pace of consumption.
And you can't seriously think that climate change is singly some kind of political tool to push left agendas, can you? Climate change isn't much in the grand span of the history of the Earth, and it might even be comical to purport that; however it is, and will be, simply put: bad for people. Especially considering extreme overpopulation; extreme resource depletion; spent, salinized, or polluted aquifers; drought; coastal inundation; famine; floods; natural disasters; war; etc..
I also feel compelled to bring the great Megafauna extinction of the late Pleistocene period (up through meltwater-pulse-B IIRC) into evidence. That's a shitload of mammals on or near the top of the food chain across multiple continents that survived for millions of years that are all gone now, and that left in a reasonably short period of time, just like the Dinosaurs. Mankind has already lost about 20% (300 ft.) of land mass due to rise in sea levels the last 20,000 years. What's the harm in a few more, right?
If history has taught us anything it's that it will be forgotten.