You are quite wrong. Quill vs North Dakota. USSC decision made it quite clear that states have no authority to tax and regulate the businesses located in other states and that they would have to have the permission of the FedGov to enact some provision authorized under the commerce clause.
The commerce clause cannot be stretched to permit congress to authorize the states to collect taxes on interstate commerce. Congress itself doesn’t have authority to tax interstate commerce.
The founders wanted interstate commerce to be free; that is the primary reason for the IC clause.