England Remains Catholic

[Frodo]

Let's suppose that Queen Catherine of Aragon bears King Henry VIII a healthy son, which in turn saves him from having to make that final break with Rome.

What are the possible ramifications of England remaining Catholic?   

[Frodo]

Are there any implications with regard to the United States?  Would there still have been thirteen colonies situated along the Atlantic seaboard? 

[Frodo]

Henry VIII having a healthy son by his first wife does not automatically mean that England would have remained Catholic. The general population started becoming more Protestant, so regardless of who was on the throne, England would have, eventually, become Protestant.

On what basis do you make this claim?