Prophet Hud - 11:36 "It was revealed to Noah: "None of your people will believe now except those who have believed until now. Do not let their behavior grieve you."
The believers were always a minority:
Prophet Jonah/10:83 Only a few of his people believed in Moses because they feared the torture and oppression of Pharaoh and his men. Pharaoh was a tyrant in the earth who exceeded the limits.

Prophet Hud/11:40 "Finally, when Our command came and the sky boiled and overflowed, We said to him: "Load on him a pair of every kind, his children and those who believe, except those who were condemned before."Those who believed with him were already a few."

The Scatterers/51:31 "(Abraham said): "O messengers, what is your mission?"
The Scatterers/51:32 "They said, "We have been sent to a guilty people."
The Scatterers/51:33 To send upon them stones of clay...
The Scatterers/51:34 Marked by your Lord for the transgressors.
The Scatterers/51:35 Then We drove out whoever therein was of the believers.
The Scatterers/51:36 We did not find therein any Muslim except in a house.

Prophet Hud/11:27 "The leaders of his people who disbelieved said, "We see that you are only a man like us, and we see that no one follows you except the shallow-minded rabble among us. Nor do we see any superiority in you over us. On the contrary, we think that you are liars."