No, I won't try to deny it. Not sure how your points are relevant to what I wrote, though.

Enslaved Africans living in Africa had a totally different experience than they did once Europeans started bringing them here. They were closer to indentured servants or modern-day prisoners, enslaved for a period of time or working off a debt. They were not used to provide life-long labor free of charge, nor were they brought to a foreign land and separated from everything they knew. Because America's demand for slaves was so high, because we relied on slaves to build our economy, we created a market for them that did not exist before. Here's a short video that adds context to your statement: https://www.youtube.com/watch?v=3NXC4Q_4JVg

As for the native people of this land, it sounds like you're trying to excuse colonizers by pointing out the "bad" things American natives did that were in truth no worse than anything that was happening in Europe or anywhere else in the world. Tribal squabbles are not colonization. No one's hands are clean when it comes to the treatment of women like property. My Greek ancestors raped young boys... no one seems to hold that against us now, though. None of it was OK. I don't even think what you've said is a secret - it's exactly how white people today justify slavery then and racism now. "They were out of line, so they deserved it." No. People are always trying to find ways to justify slavery and the ripple effects instead of saying, "This was really fucked up and wrong. How can we make amends and make sure it doesn't happen again?"