Why did many slaves and freedman ally themselves with the british cause during the american revolution ?

The British offered the slaves freedom from there masters if they left. Then joined the British army and helped fight against the US.

Sir thomas more, venerated in the catholic church as saint thomas more, was an english lawyer, social philosopher, author, statesman, and noted renaissance humanist. he was also a councillor to henry viii, and lord high chancellor of england from october 1529 to 16 may 1532. i found this information on wikipedia

The dangers of an inadequate monetary supply.