Now that I got your attention with the clickbaity title let me explain:
What I really want to to debate is the
idea of man that is induced by the principle of the sinful nature of man. It is not that all Christians have this idea or that it is only Christian. But those who put much weight on sin, see people as generally bad and dangerous until proven otherwise. I will use "Christian" as a stand-in for that position throughout this OP.
The Humanists
idea of man is in opposition to that dogma. A Humanist sees people as generally good and trustworthy until proven otherwise (and even then as having an innate dignity).
Another facet of the
idea of man in Christian vs. Humanist vision is the power and responsibility of people. (Thanks to
@Harel13 for reminding of this and finally motivating me to write this OP.) In the Christian diction man is powerless against the will of god and nearly powerless against temptation. In the Humanists mind man is responsible and capable to forge his own fate.
I'm less interested in debating which position is more
right but more interested in debating which position is more
useful.
Isn't it more psychologically sane to tell people and especially children that they have power and responsibility and to assume the same about others?
You're telling lies and half-truths..
Part 13 Bible teaches all humans are intrinsically valuable
Secular humanism believes in ideas like doctor-assisted euthanasia and abortion. Under this notion, ugly babies, quadraplegic people, those who are suffering , all get to be put down. The notion is, at a certain point, some lives just aren't essential. We see this again with the declaring of nonessential jobs during this virus lockdown.
Christianity on the other hand, formed the basis for our innocent until proven guilty law system. This a half-truth here that Christian people assume all people are guilty before proving otherwise, because the truth is, according gospel all ARE guilty, all have fallen short. But almost paradoxically, because we know everyone has sin, we know we cannot commit the sin of judging others a criminal without evidence. Under the Catholic church "every life is sacred" (no abortions), and "the body is a temple" (no suicide, no body mutilation). That is nor to say church members haven't failed the vision of the church, they have.
By comparison, humanism is taught at universities where #MeToo is a thing. Women can accuse men and they are guilty until proven innocent (which never is the case, unless they have money). Abortion and suicide are fairly common. People are not seen as having worth. You've seen it yourself. You go up to people outside a religion setting and after you introduce yourself, they ask "so what do you do for a living?" The good answer is being a doctor or lawyer, of sometimes running a nonprofit organization . The bad answer is being an unpaid volunteer, a temp, or a painter or something. And the worst is being unemployed and a dreamer or something, hoping to create something. They value people based on status. You see this also in the amount of social justice the secular world is involved in. I'd like to tell a story as analogy.
Two Buddhist monks were walking by the river, and a young lady wanted to cross. One monk grabbed her, picked her up, and hauled her across the river. Later, the other monk said, "We monks are chaste and have vowed not even to touch women! How could you do such a thing?" The other monk asked him, " I set that woman down hours ago. Why are you still carrying her? "
Social justice is like this. Even if equality is managed, they still fixate on race and gender until whatever injustice is actually reversed (that is, now another group is suffering, rather than quitting when ths scales are balanced). And they never stop fixating on sex and race. Christianity meanwhile, abolished slavery and later Jim Crow, and will probably abolish social justice once it becomes clear to all that it is just another form of racism.
Humanism has never treated people as equal. It has never treated people as innocent. It is the basis for a number of pretentious and hypocritical movements like driving a fuel inefficient hybrid that also wastes alot of electricity. Ask Al Gore how much it costs to heat his pool. Behind every liberal, you'll find an elitist, who wants to screw others over because the rules don't apply to them.