How Americans Won Revolutionary War

I thought about this a while ago and reached this conclusion as to why and how the US won the Revolutionary war.

Many speculate about how impactful French assistance was, but no one seems to talk about another aspect of the war. Hessian and other German mercenaries.

Early in the war they managed to score fast and effective victories and occupied pretty much all the important cities of the US. The colonists could not drive them out.

It could have been British victory but then an interesting thing likely happened.

First mercenaries simply stalled the war, because the longer war goes on, the longer British will have to pay them for their services.

However, then they came up with something even more ingenious:

The mercenaries simply defected to the US.

Mercenaries and colonists together easily defeated the British and UK had no choice but to make peace with the US, recognizing its independence.

Why did they defect?

In fact, there was plenty of reasons for Hessians and other mercenaries to defect.

They all come from poor Holy Roman Empire (modern Germany) princely states. States that make their money by offering their militaries as mercenaries to bigger countries such as UK and France.

People who join their militaries, likely have no better options.

That was still an era before strong nationalistic sentiments or national identities, so mercenaries unlikely to have any loyalties to their princely states. 

Thus, if they stay loyal to their princely states, they will likely simply return to their impoverished lives back in Germany.

Not a very enticing prospect.

What the US Likely Offered them

On the other hand, if they defect, they can not only make a good life in the US, but also immediately become something in the new nation.

After all the US needs good military and former Hessian Mercenaries will make for a good core of this military. It is likely they not only kept, but all increased their ranks by defecting.

The US could easily offer them much higher levels of prosperity compared to their former principalities.

They could easily become a landowner, a thing that was likely impossible for them in Germany as it was overpopulated even back then. The US could easily offer them free land in exchange for defection and likely did offered them just that.

All in all, it was likely a very enticing deal, that most of mercenaries were more than willing to take. Thus, good deals are what moves and changes the societies. Not morals and loyalties.