More can be written, but you might like to start with the FAQ section "Loyalists in the American Revolution", specifically the first three replies, by /u/CanadianHistorian, /u/Magneto88, and /u/TRB1783.

(Edit for completeness / future use:) Also "Why did many former loyalists, who either stayed in the US or returned to to the US after the Revolution, end becoming strong proponents of the Constitution in 1787 and become ardent supporters of the Federalist Party?", also by TRB1783.

This is not to discourage discussion. More questions, data and debate are welcome.

In addition to the answer pointed to by /u/scarlet_sage, you may also find this answer useful.