Voters have the power to change that and impose their own term limits, too many are hung up on the seniority of their reps to do it.
I don't know if it would surprise you or not, but I'd actually agree on term limits, In Tocqueville's candid review of Democracy in America, he wrote that within the US there is a "hunger" for a nobility class; we may say that we don't want kings and queens, counts and barons.....but we bestow "nobility" status to elected officials, court judges, actors and actresses, sports figures, etc.
Yes......I'm for term limits.