It's not that they "don't understand". It's that actually admitting they do would completely destroy their dishonest arguments on these threads. They can't admit it!!
The chart in #154 along with the textual descriptions in #151 and #155 describe the cascading effect quite well to anyone but a locked-in SQL tribesman.
Do you agree with his analysis of where the embedded taxes are going to come from in that series of posts? (from the business owners)