The issue is that a US company should also be held accountable for whatever they violates abroad. Not by the US government, of course. But by the authorities of whatever foreign market they operate on (the only authority with jurisdiction anyways).

While the tide is gradually changing, so far a substantial part of the problem is that the US government has quite a few nasty ways to shield US companies from being seriously held accountable abroad. Still, the longer that reality exists, the more inevitable it will become that at some point US companies will simply be barred altogether from (some) foreign markets. You can only abuse a dominant position for so long, before the receiving end will no longer put up with it. That is, of course, when (or as soon as) they have the luxury of choice in the matter.