Basically no point in even having a conversation about it. The same way you don't discuss evolution with someone who thinks the universe is 6000 years old.
And if they eliminated the IRS because the ERS covers all our expenses, that would effectively mean that we have shifted all of our income tax revenue away from relatively wealthy high-earners to the poor (who currently pay little to no income tax), since the poor have to buy items at the price they're listed.
If they had that much margin headroom available to cut prices by 20% and remain profitable, wouldn't that basically prove that they weren't dumping product in the first place?
For suppliers with fixed costs there are strong incentives to lower prices to stimulate demand sufficient to maintain utilization where possible. The commodity NAND market is an example of this. The fabs are extremely sensitive to utilization which leads to wild profit and loss swings.
Profit margins in most industries simply aren't high enough to cover it. A business can't absorb 20-25% tariffs if its profit margin is only 5%.
And manufacturing is particularly known for its low profit margins.
So no. I mean, in theory you are technically correct. But the way elasticity works in practice is that the buyer is who pays the tariffs in virtually all circumstances.