No! The supply-demand curve intersects at $100 and not $70. 70/30 split is an internal transaction and cost of doing business. No different than distributor cut

No! The supply-demand curve intersects at $100 and not $70. 70/30 split is an internal transaction and cost of doing business. No different than distributor cut if you’re selling physical products. The customer paid $100. That is by definition the price. All costs are relative to the price. For example, sales tax or transaction fees.