What's the thesis for my history essay?

It’s an essay on any movement in history and I chose social evolution and I’m basically explaining how social Darwinism did not have a direct affect on issues with inequalities of society.

Here’s basically how I’m organizing it.
Key Factors:
Dependence (Socially relying on others)
Acceptance (Something being socially acceptable)
Influence (Countries socially influencing other countries)

Organization:

Before and During Social Darwinism: Darwin, Social Darwinism
-Influence: Imperialism (New Imperialism and Iraq), Slavery, Racism
-Acceptance: WWII, Holocaust, Hitler, Hate groups (KKK, neo-nazis, al-Qaeda)
-Dependence: People have become more dependent on society.
-Still exists today: Refer back to extremists, imperialism in Iraq, and sweatshops.
Conclusion: Compare today and the past. Say how Social Darwinism has affected society. All wars are indirectly linked to social Darwinism.

My current confusing thesis is:
Issues created by the inequalities of society has evolved with influence, acceptance and dependance and the problems created by those inequalities still exist in the world today.

I might just briefly say what social darwinism is and not pay much attention to it just making my point immediately that, “Well, social Darwinism was more of an explanation for the inequalities of society. It never really caused anything. In fact, these inequalities had exists long before Charles Darwin had even been born. All wars have been caused by an inequality of some sort and it’s not like wars had just begun right when someone brought Darwin’s theory of natural selection to a social level. In fact, Charles Darwin never thought of evolution of having a goal and it was absurd to talk about any animal to be greater than another.”
The problem with that of course, is I start to ramble about social Darwinism cause I already did so much research on that.

I’m having trouble explaining this because my information is so unorganized and I don’t know where to put everything so I can organize it in a thesis. And I’m even unclear on what my topic should be.
I asked yahoo answers. But you know how everyone there is: “too long, didn’t read.”

Disclaimer, I’m not asking you to write my essay for me. I gave an example of my thesis I just want you to transform that thesis and my topic if necessary