I think we can cut it short. Your OP never claimed that databases automatically apply the desired acid properties. I think his point was simply that's it's poss

I think we can cut it short. Your OP never claimed that databases automatically apply the desired acid properties. I think his point was simply that's it's possible with them and not without them (without building your own acid system). No need to discuss it further. I think you merely interpreted them in a very unfortunate way.