You have very limited, or perhaps zero, knowledge of how American foreign policy actually functions.
We assassinate a leader we do not like, then install our own puppet leader, the populace ends up hating our installed leader. This causes decades of resentment and extremist factions, then we go to war with those factions in the name of freedom. Rinse and repeat until we have messed up the entire world.
Ranked-choice voting is an electoral system that allows people to vote for multiple candidates, in order of preference. Instead of just choosing who you want to win, you fill out the ballot saying who is your first choice, second choice, or third choice (or more as needed) for each position.
The candidate with the majority (more than 50%) of first-choice votes wins outright. If no candidate gets a majority of first-choice votes, then it triggers a new counting process. The candidate who did the worst is eliminated, and that candidate’s voters’ ballots are redistributed to their second-choice pick. In other words, if you ranked a losing candidate as your first choice, and the candidate is eliminated, then your vote still counts: it just moves to your second-choice candidate. That process continues until there is a candidate who has the majority of votes.