From a purely logical standpoint, leaving doesn't make a lot of sense. Your concerns have almost exclusively been related to number of clinical hours, rather than overall concerns with supervisors/site. Leaving= at least some period with 0 hours of clinical work, and 0<whatever you are getting now. If it's been more that a few weeks since you spoke with your supervisor about this, request a meeting and a plan- at the very least, ask if there is an realistic chance that things might change. If they say "no way, this is all you're going to get", then VERY carefully determine if the low clinical hours will get in the way of you meeting licensure requirements. If so, come up with an reasonable exit strategy (accounting for how you will get the necessary hours for licensure IF YOU LEAVE). If they give you a plan for more hours or you can't identify a way to meet your licensure requirements elsewhere, I'd advise you to stick it out and finish your obligation to the site. Given the nature of your concerns and how relatively soon it is in the placement, any "nuclear option" just doesn't seem warranted at this point. If you have spoke to your supervisor about this within the last week or two, maybe wait until after thanksgiving to bring it up. You won't see any more clients during the next month or two if you leave, so being planful and careful is definitely indicated as far as meeting your goal of accruing clinical hours.
Some advice from someone who has been around awhile- watch out for weekend rumination on things related to the work week. Sounds like you have plenty of time to deal with this stuff during the work week. Don't spend your weekends on this, when there is likely nothing more that you can accomplish on Saturday/Sunday that you couldn't do M-F 9-5.