It's not that millions of people are "OK" with it, but that in practice democratic elections aren't actually about policy. Suppose Alice's policy is to do X, and Bob's policy is to do Y, we might suppose voters who overwhelmingly want X will go vote for Alice, but nope, the Bob voters will still vote Bob and then be annoyed that Y happened, independent of continuing to support Bob. That doesn't make sense, but it's what happens.

This would be a grave defect if the purpose of democracy was to achieve good government, but in fact we haven't the faintest idea how to get good government, democracy is a fix for bloodshed during the inevitable power transitions. So, a bunch of idiots with no clue are still in charge, but now a _different_ bunch of idiots can take over without having to murder a bunch of people to do it.