Drivers are incentivized to keep moving as fast as possible while they approach each other in some fucked up mad max version of a traffic device, and the one who yields to avoid dying gets criticized for "not understanding roundabouts""
It's not that you don't understand traffic circles, it's that you don't understand the yield sign. Which is pretty much my biggest criticism of drivers (at least in New York). Yield does not mean use your best judgment, yield does not mean slow down to a really trivial speed but continue to move (probably one of the most common reactions I've ever seen. It makes no sense, if you're still moving you're still entering the lane, if you go slow without stopping, you're basically a speed bump to someone in the active lane, and are asking for a collision).
Yield means, as you approach the merging active lane, you look to your immediate left, and decide to either stop or go, its a binary decision.
If you see someone on your immediate left, and know that you can't match their speed, and they're to close to your merge point, as you approach the yield, you stop. If the person on your left is far out, and you can judge their speed will not overtake yours as you enter you can enter. If you don't see anyone on your left, you can enter.
If you don't know, if you're not sure, if you feel like you must hesitate, stop.
When you see a stop sign you slow to a stop before the stop sign, you don't see a stop sign and say "gee I better speed up to get ready and jam on my break".
If you approach a yield, and you can't gather enough information about the active lane you're attempting to merge into, you treat it as a stop sign.
You can get into accidents in traffic circles, I have, but they should be at greatly reduced speeds, greatly reducing the danger. If you or the person in the circle are going "Mad Max" speeds, you're breaking the law--either intentionally, or through lack of understanding.
I have seen bad traffic circles; in cases where they are over engineered, but the basic traffic circle works well, providing people understand how it works, and know that they're entering one, prior to actually entering one.