You have a very naive view of the West. The whole invasion of the ME by the States was done in the name of Christianity. Millions were slaughtered, that's not the distant past.
The debacle in Afghanistan was created by Western interference as was the current regime in Iran. The West has a habit of meddling in other countries and has done since the end of the Ottoman Empire.
The West tactically supported the overthrow of Egypt's democratically elected government. Instigated the fall of Libya's Jamahiriya, after crippling it with sanctions and they also prolonged the Syrian civil war. We won't mention the Arab Spring, Hussein, Yemen or other glaring examples.
The plutocracies in the Gulf States are wholeheartedly backed by Western powers even when they're perpetrating Islamic extremism.
Then of course, people complain when victims flee to the West to escape what they've created.
As for slavery we profit from countries with few if any human rights. All those cheap products you're buying come from China, which is currently perpetrating ethnic cleansing, and has no human rights, including the use of child labour. It's not the only country we exploit.
I won't blow your mind by telling you about cobalt and our exploitation of the Congo. Nor the repurcusions of colonisation which reverberate today.
Take a look at the current investigation into decades of Church sanctioned child abuse going on in Ireland or the Christians who perform FGM.
America has child marriage, four states don't have a minimum age. Let's not dwell on the Westerners who take advantage of sex trafficked women or lax laws in developing countries where they prey on women and children.
I await frothing from the usual suspects.