Nobody can protest their ignorance of sin - because to say it is to mean the opposite. Yet modern people are continually using this excuse (often on behalf of others, but we know what they really mean)!
The main problem in modernity is related to the sexual revolution - that is where the assault has been focused. Sexual sins are not the most important sins of themselves - but in our civilization they are the most significant sins because they are taught as virtues.
There is a moral inversion evident in the sexual arena - and it has now become illegal, against employment rules, and a matter for social ostracism to argue in favour of Christian sexual ethics: to state that these ethics are true.
The profound spiritual sickness of modernity is evident in our passive, zombie-like acceptance of morally outrageous teachings and behaviours in the sexual domain - of lies, evasions, inversions and the rest of it - these are matters of daily, hourly, experience going up to the top level of all major organizations.
Clearly, those who teach and lead are most deeply at fault, but we are all born with a moral compass (what CS Lewis called The Tao) which is why all past societies had very similar moral intuitions - so when such matters are systematically violated (for the first time in human history) then we all know what is going-on, we don't need to be told; and our protestations of ignorance or innocence merely compound the morass, and add dishonesty to the account of our corruption.
We are not talking about subtle hair-splitting here! We are talking about the fact that we live in a society which first lost its moral compass, then reinstalled it with the North and South reversed.
The fact that we placidly stumble through daily life - numbed by distractions and distracted by intoxications - being kind here and there, and feeling compassionate about things the mass media tells us to feel compassionate about... well, all this is sleepwalking into oblivion.
But it is more like the intoxication of drug addiction than sleepwalking, because we are culpable for our state - we choose to live in this un-responsible way.
Instead of our life being theosis, towards divinity - trial and error, repentance and striving - life is an incremental degeneration which we have renamed progress. Well, it doesn't fool anyone - most importantly it does not fool ourselves - as can be seen by the objective evidence of demotivated nihilistic despair all around - the evident (although feebly-denied) self-hating, self-destroying, suicidal conviction which has gripped the whole developed world and which is being implemented, daily, by the elites - with barely a glimmer of protest, because - after all - what is worth saving?
True enough. That is not the problem - the problem is that those who make the world so meaningless and despair inducing that it is not worth saving, prevent (to the best of their power) Christians from doing anything about it - they focused their declining powers on enforcing their nihilism, and on hunting out and extirpating or else subverting and corrupting all residual Christianity, and nearly all that remains of virtue.
(Specifically, they use one or two virtues to destroy the others, by a kind of rotation - compassion to destroy justice; kindness to destroy faith etc. After all, it is the good in evil which allows evil to prosper. But in each cycle - each turn of the wheel - there is more evil, less good.)
The dopey complacency of modern man is hard to tolerate: 'Oh, we aren't really that bad - our intentions are good.' - This is a hopelessness which spells the end of hope; because intentions are not good - there are indeed no intentions at all in any sense of a goal to life. How could there be intentions when a Man's life is seen to be, taught to be, an accidental and meaningless blip terminated by oblivion?