In order: 1) Killing 95% of the species based purely on IQ would first of all set us back to a world population of between 1000-2000 BC with a set back to our society relatively similar in proportion. Second it would not really solve your frustration issue because intelligent individuals are just as likely to be deluded about there omnipotence as anyone else.
2) "There is not a single multiplatform game in the history of gaming that didn't suffer due to being, well, multiplatform." To me a game being good and suffering are mutually exclusive although for the purposes of this we will assume they are not. Can you tell me where Portal 2 or TF 2 suffered for having console ports? And "good is, after all, subjective" is just as much Reductio ad absurdum as anything I have said is straw man. By that argument any single game could be good no matter how crappy just by virtue of being a video game and modern marvel. I think we can safely equate good with both enjoyable and successful to/with a large segment of the population.
3) Also I find it hard to say that XCOM has suffered when it is an incredible game with smooth gameplay and outstanding replayability that is still strong several years after release. It jerks around almost never and both play and cut scenes are smooth.
4) I absolutely care about the argument but I am trying to indicate that it is not worth contemplating mass murder/genocide for. I think that is a fair argument to make. Why is it necessary to be angry and hateful in order to discuss important issues? Your whole argument here is straw man.
5) What empty superiority and false privilege? How does it not concern either of us? It concerns both of us however that is not the same as saying we have control over it. At this point they have enough into the production based on their comments that its going to be released, and since it's going to be free we don't even really have the option of using money as speech. We will just have to not purchase further products/versions of the game on the console/DLC if we are unhappy with the game.
6) This is the most valid of your arguments, you can't play EE when it drops and the game you currently enjoy will not be supported when it comes out. However this is a business decision by the company about whether or not a large enough number are effected to justify holding back updating the engine. What exactly are your system specs btw? How hard is it going to be to get you to 11 so you can play? I feel like it's just a modern version of windows and a graphics card that supports it? So ~250-300$? Rather than focusing on the negative why not try and find a way to solve the problem?
