You have an election when Delta is the dominant variant and then Omicron comes along after the election. Do you want to have referendums on everything between elections. How do you change the system other than going to proportional representation and even then, someone has to form a government and they still probably won't have more than 50% of the popular vote. It's all about seats and the same thing happens in the US. Democrats regularly win the popular vote yet Republicans end up controlling the House, Senate and even the Presidency through gerrymandering and the electoral college.