How did the seven years war bring on a crisis of empire between the colonies and the crown?

Main reasons why the French and Indian War/ 7 Years War causes the crisis between the colonies and Britain:

1.  This is the biggest one: it causes the British government to go too deep in debt.  So they want money to make up for that.  That's why they start trying to tax the colonies and trying to crack down on smuggling and stuff like that.  So the war leads them to try to control the colonies more than ever before and the colonies don't like that.

2.  Takes the French out of North America so the Americans don't have to worry about getting swallowed by France if they become independent.

3.  Allows Americans from different colonies to get to know one another and see that they have things in common.  Before that, they might as well have been from different countries so there was no way they'd work together to become independent.