Have you ever watch a strutting rooster or peacock? They walk around with chest puffed up and head held high with an air of being the king of the world. These are just birds, but have you ever seen a human looking like that? Around my house it is called "cocky". Short, I am sure, for looking like a peacock. And just like that peacock or rooster, you really have nothing for which to be strutting.
In Psalm 12 David is bemoaning that there are no more godly people, and that the loyal have have vanished from the human race. He describes these ungodly as those who "lie to their neighbor" and "harbor deception in their hearts". Keep in mind this was written 3,000 years ago! David's world sounds a lot like ours.
David gives the reason for this strutting about in the final verses, calling out those who cause this condition to run amok.
"You, Lord, will keep the needy safe and will protect us from the wicked,
who freely strut about when what is vile is honored by the human race."
Now, before you begin to rip Hollywood or government leaders for not policing this, consider David's words. "The human race" includes you and me as individuals. I can "honor" with my money, my time, my attention, my conversations, etc. I laugh, I post and repost, and I comment. All of these things are giving attention, or "honor". As I do this it emboldens the vile to strut about more and more. Don't like what you see, don't look. Don't like what is being talked about, don't listen. Don't like what is being written, don't read.
But let's put this in a positive light, shall we? As Paul puts it,
"Whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things." --Philippians 4:8
You want the strutting of the vile to end, then set your mind on things above. Be someone who is honorable and just. Talk about others who do the same, share their stories with your neighbor, praise those who do commendable things. Paul tells us "practice these things, and the God of peace will be with you."