I agree with you. I think term limits are a bad idea. The assumption is that no one ever seeks office because he’s a dedicated public servant who wants to make this country a better place. With term limits, if you elect someone who’s in there doing a great job and commanding respect from everyone, he’s forced to quit, for no reason other than to kick out the occasional bad guy. That’s wrong, and it hurts our country.
If the Founding Fathers didn’t want career politicians in office, then term limits would have been part of our Constitution. They’re not.
Here's what Mr. Madison had to say in Federalist 53:
A few of the members, as happens in all such assemblies, will possess superior talents; will, by frequent reelections, become members of long standing; will be thoroughly masters of the public business, and perhaps not unwilling to avail themselves of those advantages. The greater the proportion of new members, and the less the information of the bulk of the members the more apt will they be to fall into the snares that may be laid for them. This remark is no less applicable to the relation which will subsist between the House of Representatives and the Senate.