FSD doesn't need to be perfect to avoid accidents. In fact, if it was too perfect I'm afraid I could become very inattentive at the wheel.
So, not Full Self Driving...
The regular, included autopilot works pretty well as a smarter cruise control; as long as you use it on a major highway in the daytime in good conditions it does a good job. And it's very useful in stop-and-go traffic on the highway.
But the FSD is crap.
You may have tried FSD beta. Different things entirely.
Fault, distracted, intoxicated human beings are allowed on public roads. The "legal limits" for blood alcohol levels aren't 0.00%.
The standards of human drivers is lower than that of FSD, and somehow you think that this is a good reason to justify lowering the standards of FSD.
That’s the only way it could be released in its current state.
Looking at it as anything other than a beta where you have to maintain control is misunderstanding what it is. Which you are clearly doing. It is absolutely expected to be worse than a drunk teenager in this stage.
Autopilot on Freeways works ok for the most part though.