They were older, better established, and resisted radical change.Other reasons:
They felt that rebellion against the Crown—the legitimate government—was morally wrong.
They were alienated when the Patriots resorted to violence, such as burning houses and tarring and feathering.
They wanted to take a middle-of-the road position and were angry when forced by the Patriots to declare their opposition.
They had a long-standing sentimental attachment to Britain (often with business and family links).
They were procrastinators who realized that independence was bound to come someday, but wanted to postpone the moment.
They were cautious and afraid that chaos and mob rule would result.
Some were pessimists who lacked the confidence in the future displayed by the Patriots. Others recalled the dreadful experiences of many Jacobite rebels after the failure of the last Jacobite rebellion as recently as 1745 who often lost their lands when the Hanoverian government won.
They felt a need for order and believed that Parliament was the legitimate authority.Who does that sound like — of the Americans around today? You?
In New York, powerful families had assembled colony-wide coalitions of supporters, Men long associated with the DeLancey faction went along when its leadership decided to support the crown
They felt themselves to be weak or threatened within American society and in need of an outside defender such as the British Crown and Parliament.
They had been promised freedom from slavery by the British.
They felt that being a part of the British Empire was crucial in terms of commerce and their business operations.