The market for civil airliners is already far too concentrated and dysfunctional, it'd be even worse with a single player (Boeing).
Finding who's been involved in the decision-making process and punishing them harshly is fair and does send the right message. Destroying a large corporation arbitrarily doesn't.
Besides, in both Volkswagen and Airbus cases, they're far from being the sole bad actors in their respective industries. You'd only hand their marketshare to others who've been slightly better at not getting caught but were really doing the same thing all along.
Without this threat, we have the situation we have today: Companies never get significantly punished for anything, "because jobs," and corruption is rampant.
Shareholders of VW have already taken a massive hit when the stock tanked. Destroying the company would achieve nothing at all. The efficient and fair course of action is to prosecute the executives who made or authorised illegal decisions while minimising impact on those not involved. Shareholders are not a substitute for a court of law, and rash group punishment has never worked out well.
Maybe it's better to start the change from the other side. Make people understand and feel what it means if they are being cheated of their tax money.
The fundamental human right is not freedom, self-determination, or happiness, it’s the right to fairness and the current world order, imho, is unfair. It will continue to be unfair until the rules are applied equally regardless of which cohort loses jobs or which fat cat banker dies in a ditch.
That doesn't mean we should stop treating it like a problem. It just means we should look back on our sordid history as a species and take that as encouragement that we can keep improving.
And it starts with awareness. Who today talks about the BP oil and Exxon Valdez oil spills, or Love Canal, or Enron†?
†Execs only got prosecuted and convicted here because more powerful people lost money because of them.
When some European/Western companies indulges in corruption and out-and-out egregious behavior, it's "just boys being boys" and "too big to fail."
A Chinese company indulges in some industrial espionage or uses that country's diplomatic levers and suddenly the sky is falling down.
E.g., why is Volkswagen still in business after literally setting fire to the world? Why should Airbus not be summarily be liquidated in found guilty of corruption?
Back in the day, news of such corruption would percolate slowly into the rest of world. That is no longer the case. News spreads quickly. People (like me) are watching and hoping that the standards get applied equally and if they don't, I like to think the strength in numbers and youth lies in the East, not the West.