Too many and too much gives the negative meaning of "more than needed". It means that you don't like the present situation.
When you say "there are too many people in the room", you mean that it is very crowded and you don't like it.
Form: too much + noun / too many + noun
Countable Nouns Uncountable Nouns
too many cups too much coffee
too many problems too much time
too many people too much sugar
Example Sentences:
I drink too much coffee every day.
There are too many cars in this park.
He put too many spoons of sugar in his tea.
They spent too much time on the test.
Was there too much noise in the library?
Too many children are leaving home in the morning without having breakfast.
There are too many items on the agenda for the meeting - we'll never get through them all.
Watching too much television has a negative effect on children's education.
Too much cholesterol in your blood can cause heart disease.