You say that, with 50% plus one, people are elected directly. Great, that works for me. I have run in four elections and I have won three of them with more than 50%. The MP for Quebec City, who is with us today, is now a senior minister in the current government and he was elected with 28% of the votes. That makes him no less duly elected. He himself acknowledges that he is not a minister for Quebec City, but that is another issue.
In the conditions you describe, no democracy can work.
Take the second round of voting in France as an example. There is a candidate A and a candidate B and one of them has to get an absolute majority. If we start from the principle that there is no balanced voting system because one vote means nothing, it means that, for 48% of the people who do not vote, those who vote for the losing candidate, their vote is lost. No, in democracy, no vote is lost. Each vote expresses an opinion. Just because the candidate of our choice lost does not mean that our vote is lost.