Why would the british care if there were french troops in america?

Great Britain was still in control of the colonies and didn't want to lose them to the French.

The french were also trying to claim land in america not just in Britain. 

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.