Not necessarily. Most race conditions violate the `A` in ACID, but the finicky thing about atomicity is that N > 1 sequential actions that in and of themselves are atomic violates atomicity. So any atomic store is possible to misuse if you can compose multiple atomic operations on it.
In addition ACID isn't always provided by the floor beneath your programs but by designing the programs on top to uphold it and/or not require it, allowing you to relax the constraints from your lower level interfaces for performance reasons.
