That humanism you mention, is it in regard to only yourself?
It's in regard to humanity in general... hence humanism. Do the least amount of harm possible to all people.
As far as superstition you probably regard faith or belief as a superstion because its something you do not understand. I would have to differ with your opinion of what superstition is because I understand everything I choose to believe.
I beg to differ. I was born and raised a Christian. Superstition is a belief that is unsupported by evidence or reason; and while you may make claims that your belief has good philosophical reasons, nobody has ever been able to put forward an unflawed argument for god that didn't have at least a couple fallacies included.
Its a matter of understanding and perspective. Allowing is not necessarily the same thing as condoning. Any more than you choosing the lessor of two evils would be condoning the lessor evil. Its simply your available choice. God allows men free will. Yes, even to enslave each other or permit other evils if they so choose. God sanctions only the good.
I beg to disagree. It's not a question of free will, it's a question of specifically condoning the action. He commanded his people to go slaughter opposing tribes all while taking all of the virgin girls as slaves.
"The Lord said to Moses and Aaron, "These are the regulations for the Passover: No foreigner is to eat of it. Any slave you have bought may eat of it after you have circumcised him, but a temporary resident and a hired worker may not eat of it." (Exodus 12:43)
"However, you may purchase male or female slaves from among the foreigners who live among you. You may also purchase the children of such resident foreigners, including those who have been born in your land. You may treat them as your property, passing them on to your children as a permanent inheritance. You may treat your slaves like this, but the people of Israel, your relatives, must never be treated this way." (Leviticus 25:44-46 NLT)
"When a man sells his daughter as a slave, she will not be freed at the end of six years as the men are. If she does not please the man who bought her, he may allow her to be bought back again. But he is not allowed to sell her to foreigners, since he is the one who broke the contract with her. And if the slave girl's owner arranges for her to marry his son, he may no longer treat her as a slave girl, but he must treat her as his daughter. If he himself marries her and then takes another wife, he may not reduce her food or clothing or fail to sleep with her as his wife. If he fails in any of these three ways, she may leave as a free woman without making any payment." (Exodus 21:7-11 NLT)
"Slaves, obey your earthly masters with deep respect and fear. Serve them sincerely as you would serve Christ." (Ephesians 6:5 NLT)
"Christians who are slaves should give their masters full respect so that the name of God and his teaching will not be shamed. If your master is a Christian, that is no excuse for being disrespectful. You should work all the harder because you are helping another believer by your efforts. Teach these truths, Timothy, and encourage everyone to obey them." (1 Timothy 6:1-2 NLT)
Jesus condones the beating of slaves in this parable:
"The servant will be severely punished, for though he knew his duty, he refused to do it. "But people who are not aware that they are doing wrong will be punished only lightly. Much is required from those to whom much is given, and much more is required from those to whom much more is given." "(Luke 12:47-48 NLT)