What's crazy about it? Most democracies have behaved in the way you decried for most of their lifespans. Just because some subset of the population is allowed to vote for representatives in parliament doesn't mean that parliament can't run an anti-citizen secret police... Or internal repression against a minority group. Or some imperialist horror-show. Or carry out an a aggressive invasion and occupation. Nothing about a democracy necessitates that it adhere to a 21st century humanist understanding of civil rights.

Hell, if you're in the US, your local municipality is almost certainly both a democracy, and primarily exists to funnel your tax money into what is a frequently corrupt, unaccountable, and very anti-citizen police force. Nobody cares about fixing this state of affairs, because as long as its other people that are getting brutalized, I can sleep comfortably. And that's on a municipal level!