It is out in the open. It says so on Steam no matter how much you want it not to. It's a shame you bought the game, but it does warn about Intel and there is a demo to try if interested even after reading the warning.
This is a driver issue and not an issue with the game. We can't fix it.
See this video:
Integrated Intel works on Linux when using the latest drivers, it also works on the new Macbook Pro (which is the first Mac with integrated Intel since the old X3100) so if Intel transition those improvements to Windows the game should work.