Ephesians 6:12 characterizing this world as “darkness”?
Ephesians 6:12: "For our struggle is not against flesh and blood, but
against the rulers, against the powers, against the world forces of
this darkness, against the spiritual forces of wickedness in the
heavenly places" (emphasis added).
Does the highlighted clause imply that our world is "darkness"? YES -- in spiritual darkness
The expression"spiritual forces of wickedness in the heavenly places" Refers to Satan and his Demons. Their intention is to keep mankind in spiritual darkness, alienated from the light of true God.
Satan and his “wicked spirit forces in the heavenly places” act as the invisible “world rulers [form of the Greek word ko·smo·kraʹtor] of this darkness.” Eph 6:11, 12
Ephesians 6:11-12 NET
11 Clothe yourselves with the full armor of God so that you will be
able to stand against the schemes of the devil. 12 For our struggle is
not against flesh and blood, but against the rulers, against the
powers, against the world rulers of this darkness, against the
spiritual forces of evil in the heavens.
From the footnotes Eph. 6:12 NET
Ephesians 6:12 in BDAG 561 s.v. κοσμοκράτωρ suggests “the rulers of this sinful world” as a gloss. sn The phrase world-rulers of this darkness does not refer to human rulers but the evil spirits that rule over the world. The phrase thus stands in apposition to what follows (the spiritual forces of evil in the heavens); see note on heavens at the end of this verse.
Ephesians 6:12 tn BDAG 837 s.v. πνευματικός 3 suggests “the spirit-forces of evil” in Ephesians 6:12.
How do the "world rulers of this darkness" might influence the behavior of human beings all over the world -
Yes - The "world rulers of darkness " influence the behavior of governments, humans, false religions including Christian-(Christians in name only). The commercial system to mislead the world.(Rev 12:9)Satan also promotes lies through the commercial system. For example, this system often teaches people that the best way to be happy is to pursue money and gather many possessions. (Prov. 18:11) Those who believe this lie spend their lives serving “Riches” rather than God. (Matt. 6:24) Eventually, their love of material things can choke any love they had for God.—Matt. 13:22; 1 John 2:15, 16.)
Another effective bait that Satan uses is curiosity about the occult. Today, he promotes interest in the demons not only through false religion but also through the entertainment industry. Movies, electronic games, and other media make spiritism seem exciting.
By means of his spirit organization, Satan exerts authority over all human governments. That fact was made plain when Satan showed Jesus “all the kingdoms of the inhabited earth” and said: “I will give you all this authority and their glory because it has been handed over to me, and I give it to whomever I wish.” (Luke 4:5, 6) Despite Satan’s evil influence, many governments do a measure of good for their citizens. And individual rulers may have noble intentions.