Hi,
No offense taken, even though I do understand these things all too well: As part of my job over the years, I am often the guy who chooses (or recommends to the guy who officially chooses) the cpu that goes into some product or another.
So while I am not at all surprised that a game with state of the art graphics will not run on my system, and am not at all surprised that the designers chose to emphasize state of the art graphics over other aspects of the game, I am disappointed, because the things that make Civ great have little to do with that.
Going a little too far: I see the situation similar to a game company deciding to release "Tic Tac Toe 2016" requiring a dedicated graphics card, preferably high-end, lots of RAM, an SSD and 4 cores, yet the AI sometimes loses on expert level, even while playing X.
I definitely sympathize with that design choice! Good AI is hard, and glitzy graphics sell, even when it gets in the way of the UI. (Not saying that's the case here, but also not saying it isn't.)
I don't sympathize sufficiently to buy a new computer. As you infer, I'm not much of a computer gamer, interested in only a few titles (and then usually become less interested as the (real) reviews come out suggesting that I might be happier replaying what I already have, and even better off doing something outside

). Maybe if Civ6 proves to be totally awesome, I might decide that it's time for a new system, with more pixels, and perhaps turn this laptop into a Linux box. Meanwhile, other than graphics, PCs from 2011 are not that much slower than modern systems! That's something to get used to, for those of us accustomed to steeper improvements. But my laptop runs everything I use, without a hint of instability.
In fact, for most applications, I am much better off without a great graphics subsystem, which brings heat, fan noise and shorter system life to the table.
Anyway,
Ken