You really don't want to let go of this idiocy, do you ?
The examples I gave are ways in which the democratic process can be subverted. It's more than just whether you are black or gay. It's the very basis by which a citizen can freely exercise their choice.
If that choice can be interfered with then the whole principle of one person - one vote goes out the window.
If I know my vote will impact my personal future - that I, or my family could be attacked or threatened, or my career ruined, because of the way I vote - even if that is just a potential threat then I will not vote at all, or if forced to will vote safely with the herd.