There's also the rather obvious conflict of interest between politicians needing/wanting money and politicians being supposed to represent the will of the people (rather than the will of those who can give them a lot of money). That police officers aren't being bribed doesn't mean we don't have corruption. We just have corruption with Western characteristics.
Regardless, writing X in a box every four years is hardly a “democracy”.
It's the same way that you can't say a child abuser isn't responsible for his crimes because he was abused himself as a child. Yes, that's a factor that contributed to his actions, but he's still responsible for his own actions no matter how difficult the decision is.
Yes, voting every 4 years is a democracy. It might not be direct democracy but direct democracy has serious problems and you probably wouldn't want it.
Politicians, backed by professional PR companies who in turn are based on sociology/psychology and years of studies, can pull on emotional strings of people who are already self identify into entrenched positions. Using emotions is clearly easier and more powerful way of getting votes. The only way to win is to play their game, and that costs a lot of money.
Its a fools game to try convince anyone with facts, it simply doesn't work. Thats why anti vaccines, flat earth etc are so rampant today. The more you reason with those type of people the more you entrench them.
do you mean plain jane A/B testing?