There is no standard collective noun for a group of protesters. Collective nouns are an informal part of language. Any noun that suits the context of a situation can function as a collective noun.
Some examples of collective nouns are:
There is no specific collective noun for activists, in which case a noun suitable for the situation is used. Activists are people, so a collective noun for people will probably work, for example a crowd of activists, a mob of activists, a committee of activists, etc.
The collective noun is a melee of rioters.
Nobody is telling
Mob
Shoal is a collective noun. It is the collective noun for fish. A shoal of fish.The collective noun is a mint of candies
There is no standard collective noun for a group of reflections. The noun 'reflection' is not a standard collective noun.
No, the noun lumber is not used as a collective noun. The collective noun for lumber is a stack of lumber.
No, the noun farm is not a collective noun.
No it is not a collective noun.
No, the noun 'activist' is a word for a person, one person.A collective noun is a noun used to group people or things taken together as one whole in a descriptive way.
Shoal is a collective noun. It is the collective noun for fish. A shoal of fish.The collective noun is a mint of candies
There is no standard collective noun for a group of reflections. The noun 'reflection' is not a standard collective noun.
No, the noun lumber is not used as a collective noun. The collective noun for lumber is a stack of lumber.
No, the noun farm is not a collective noun.
No it is not a collective noun.
The collective noun is a series of explosions.
No, games is not a collective noun. The collective noun for games is 'a compendium of games'.
The collective noun is an anthology of poetry.
No, the noun land is not a collective noun. However, any noun can function is as a collective noun in a suitable context without being a designated collective noun.
The collective noun for 'wheat' is a sheaf of wheat.The collective noun for 'barley' is a crop of barley.
The collective noun is a drift of icebergs.