Frederick Douglas had lots to say about Christianity and Slavery, and he knew more about it than every presently living American combined. That statement is only slightly hyperbolic.
But the church of this country is not only indifferent to the wrongs of the slave, it actually takes sides with the oppressors. It has made itself the bulwark of American slavery, and the shield of American slave-hunters. Many of its most eloquent Divines, who stand as the very lights of the church, have shamelessly given the sanction of religion and the Bible to the whole slave system. They have taught that man may, properly, be a slave; that the relation of master and slave is ordained of God; that to send back an escaped bondman to his master is clearly the duty of all the followers of the Lord Jesus Christ; and this horrible blasphemy is palmed off upon the world for Christianity.... Fellow-citizens! I will not enlarge further on your national inconsistencies. The existence of slavery in this country brands your republicanism as a sham, your humanity as a base pretence, and your Christianity as a lie.... Standing with God and the crushed and bleeding slave on this occasion, I will, in the name of humanity which is outraged, in the name of liberty which is fettered, in the name of the constitution and the Bible, which are disregarded and trampled upon, dare to call in question and to denounce, with all the emphasis I can command, everything that serves to perpetuate slavery—the great sin and shame of America!
The American church is guilty, when viewed in connection with what it is doing to uphold slavery; but it is superlatively guilty when viewed in connection with its ability to abolish slavery. The sin of which it is guilty is one of omission as well as of commission.
These ministers make religion a cold and flinty-hearted thing, having neither principles of right action, nor bowels of compassion. They strip the love of God of its beauty, and leave the throng of religion a huge, horrible, repulsive form. It is a religion for oppressors, tyrants, man-stealers, and thugs. It is not that “pure and undefiled religion” which is from above, and which is “first pure, then peaceable, easy to be entreated, full of mercy and good fruits, without partiality, and without hypocrisy.”
So basically, fuck you if you use the Bible to justify slavery, it doesn't justify slavery, and if you claim that you are engaging in slavery by the will of God you are a fraud. This also applies easily to our modern problem of open racism in America.
To wrap it up on who is or is not a Christian and therefore qualified to represent us as a whole:
15 “Beware of false prophets, who come to you in sheep’s clothing, but inwardly they are ravenous wolves. 16 You will know them by their fruits. Do men gather grapes from thornbushes or figs from thistles? 17 Even so, every good tree bears good fruit, but a bad tree bears bad fruit. 18 A good tree cannot bear bad fruit, nor can a bad tree bear good fruit. 19 Every tree that does not bear good fruit is cut down and thrown into the fire. 20 Therefore by their fruits you will know them.
If some asshole in a suit and a good speaking voice tells you that he is a Christian and also supports crap like Slavery or Racism or whatever the hell else,
you will know them by their actions. Thornbushes don't grow grapes, and Christians don't support Slavery.
I would also direct you to
the entire book of Philemon where Paul, the literal architect of Christianity, sends an escaped slave back to his friend, but sends a letter ahead explaining how he is a human being that deserves to be treated as a brother, not a slave. I can go on and point out that the Slave Bible, the one distributed to American Slaves, omitted something like half of the actual Bible. Either it was to save paper, or
the message of the bible doesn't support slavery folks, as evidenced by the people actively using it to justify their slavery. There are countless directions I can go here that go beyond "THAT ONE VERSE TALKS ABOUT SLAVES SO CHRISTIANITY SUPPORTS SLAVERY LOL".
I'm tired of trying to explain to people who claim to be Christians the remarkably severe, long lasting damage they are capable of inflicting on society and the people around them with their selfish, twisted actions while people who
aren't even religious defend their actions for them.