Many of us are not caring about other societies decaying. We are only looking at our society decaying because we don't realise society decaying in other parts of the world will affect our society more. clearly establishing an islamic government is not enough. Else saudi arabia would not face issues like having pop music and samba dance in its land which is agaisnt islam.
So what do you think is the solution in your own mind.
My only solution is to block all social medias and youtube alike. Only allow things like news,sites that contain information etc.. if someone wants to be entertained then go out for a walk instead of youtube. Which am guilty of using a lot and everyday