What if Louis XVI had proceeded from Varennes across the frontier, in 1791?

The French Revolution left King Louis XVI a virtual prisoner of his own people at Versailles, and eventually in Paris, leading, ultimately, to his inevitable execution at the hands of Madame Guillotine. However, he had numerous opportunities to escape. Most notably, in 1791, he and his family did succeed in fleeing from Versailles to Varennes, near the frontier. He was starting to be recognized, but loyal French hussars could certainly have forced their way through to escape, if he'd ordered them to do so. Louis XVI refused to do so. Why, exactly? Why was King Louis so unwilling to use force against his own people, even when his own life was clearly at stake? Certainly, neither of the other best known regicides of Europe -- Charles I of England, and Nicholas II of Russia -- showed the slightest reluctance to kill their own people in defense of themselves, or their regimes. Just the opposite, in fact. However, their ruthlessness didn't save them. Perhaps, King Louis was simply hoping that a kinder and gentler approach might be more effective. Maybe, ultimately, the problem was simply stupidity and incompetence. Failing to understand when force would be effective, and when it wouldn't be. So, let's suppose Louis does accept the support of his loyal troops and proceeds across the frontier, with a limited use of force, and successfully reaches safe haven in the hands of his Austrian/German allies and supporters. What happens next? I suppose we would have an allied intervention in France, along the lines of what occurred in any case. And, that, probably would have been unsuccessful, as it was OTL. The French people will successfully defend France from the counterrevolutionaries. Effectively then, Louis will simply remain, along with his family, an exile. Otherwise, things may remain largely unchanged from OTL -- terror, dictatorship, Empire and, ultimately, defeat and Restoration.