We can have term limits. Just vote them out. The problem is everyone hates Congress but for some reason just love their own critter.
No, we cannot "just vote them out".
Votes do not matter. The people who count the votes matter. The system used to count the votes matters. Ballots matter, especially the procedures used to distribute and collect them. Actual voters do not matter at all.
The "election" system is all just a show. The real system is "one dollar, one vote". Six-figure contributions will get you a hearing. Regular seven-figure contributions will get your lobbyists a seat at the table when new laws are written, and the government cheese gets distributed.
I dislike Congress, and I dislike my Congress-critters. They represent industry lobbyists and government workers who sponsor them. They do not represent the general public at all. They certainly do not represent me or my interests. Almost everything they do comes at my expense. The best I can do is to be ignored by politicians. It can be harmful to attract their attention.
What they don't know won't hurt me.
And yet I still vote in "elections". It is a sentimental flaw, I suppose. I want that civil society that I was taught about when I was much younger. It seemed like a better place and voting was how we were supposed to keep it that way. My youthful indoctrination apparently stuck with me.