it is the system that is corrupt not the people electing these officials
I don’t think anyone would deny that, that’s not the issue.
Ultimately it is the people who create a system, and ultimately it is the people who bare responsibility for correcting that system. We should never be in the situation where politicians are allowed to "create" a system, or manipulate a system. They should not be able to do that in the first place. If they are able to then its we the Public must correct that either through the Vote or putting in place a new system via Oversight mechanisms such as the Supreme Court.
It is of course insane to believe that the Public should bare responsibility for every political misdemeanor, hardly needs saying - there will always be abuses, and providing those abuses are corrected from within the system the Public authorised, then all is well - the system the Public created is working. (for example Vote the idiots out, impeach the President, whatever).
But when those abuses can no longer be corrected from within the system the Public authorised, and they are a threat to the system the Public wants, then that is a situation that the Public must stand up for, and be counted and corrected. A system which is continually allowing idiots to represent the people, and is being abused to create parties with power bases not intended by the people is dangerous - that can only be resolved by the people, politicians must not be allowed to police themselves.
Ultimately, any political system is one created and maintained by the people, not the politicians. Allow elected politicians to change the basic core system .... that is when dictatorships and totalitarian states emerge. We have fought too many wars over the latter, lets not go down that road to another.
Voting into office elected officials which say one thing and do another damages us all but it is the system that is corrupt not the people electing these officials
Then Vote them out - the system then works. Voting in idiots who say one thing and do another just because they are the best of a bad bunch, is not a corrupt system, its a less than thoughtful public (the means to eject them exists - don’t vote for the idiot - the real hassle comes when you cant get rid of them - then you have a corrupt system).