"Software has no flaws" is not a strong position historically. I mean, the very fact that we're on TLS version 1.3 and not SSL 1.0 should be clue enough.
> Has our foreign policy towards Israel, Egypt, Saudi Arabia, Iran, North Korea, Cuba, to name a few countries, changed significantly depending on whether someone from the Democratic or Republican Party is president?
This is a strawman meant to distract. You should instead ask "Are there significant benefits and incentives to set up a puppet government?" The answer to that is a very obvious yes. You can then ask "Is doing that easier if you can flip votes easily?" The answer to that is a very obvious yes.