But is that the problem here? I mean, yes, if the rules about importing went away this problem would vanish over night, but let's ignore that for just a moment

But is that the problem here? I mean, yes, if the rules about importing went away this problem would vanish over night, but let's ignore that for just a moment and imagine this same problem exists on a world-wide scale (it very well could!). How can a newcomer get into this market and undercut a competitor who can essentially drop prices as low as they want without losing their profitability?