"Surrealism is a bourgeois disaffection; that its militants thought it universal is only one of the signs that it is typically bourgeois"

This quote by Susan Sontag recommends that Surrealism is a kind of disaffection among the bourgeoisie, or the upper course. She indicates that the Surrealists believed their activity was applicable to all individuals, yet this is a sign that it is a typically bourgeois motion. This might imply that the Surrealists were not aware of the fact that their activity was exclusive to the upper class, or that they were intentionally trying to make it appear as though it was a motion for all people. Either way, Sontag is suggesting that Surrealism is an activity that is exclusive to the top course, which its militants were either unaware of this or were attempting to make it appear as though it was a motion for all individuals.