Vote weight is fairly common as it provides minority groups a bit more control of their areas. I find that reasonable. There is no such thing as perfect democracy unless you voted on every single issue regardless of importance and that is simply not practical. Sure things could be designed a bit better but the majority of democratic countries have systems that are working quite well. The biggest destabilizes now likely comes more from social media that spreads every dissatisfaction because it sells and makes people think the world is coming to an end. It's not. Or at least not because of failing democracies.