I dont have a specific source in mind, and I’m not completely disagreeing with you.
If you were selling widgets, wouldn’t you already be selling them at a price that maximizes your profit? So, you are likely to keep the price the same to sell just as many widgets. In this case the tariff is eating into your profit.
Maybe the cost of the tariff eats up your profit margin, and you have no choice but to increase the price. We know higher prices leads to a decrease in demand. Yes, you are right that the cost is being passed on to the customer, but it’s also costing you profits. Your profit margin is the same, but you are selling less products.
Neither one of us supports these tariffs, I just happen to believe the effect on the consumer is overblown to a large extent. I think the bigger effect is on whoever is producing the product.