Strongly disagree. I hope you are being hyperbolic. While there is certainly a wide range in competency and the level of value provided by recruiters, many of them are MUCH better than zero stars.
When I find a good recruiter, I stick with them (as long as I'm shopping in the area that they deal with). I make sure they know that. If a recruiter is good enough that they can value a long term relationship as opposed to frantically trying to meet their sales targets every month, then they are a good recruiter.
The downside is that there are practically no good recruiters ;-). If I'm seriously looking for a job, I look as hard for recruiters as I do for a job. Often I find the job before the recruiter.