praise_yeshua said:Romans 1:20 doesn't reference the whole or unregenerate humanity... what a self serving conclusion. All of humanity is without excuse.
Then please identify the antecedent to the pronoun "they" in verse 21.
The whole point of verses 18ff is establishing the fact that EVERY unbeliever suppresses the truth. Why? Because they are hostile to God and unless He makes them alive/removes their blindness (and many more analogies of unsaved man's impotence)... they will continue until their death.