If you think slavery is the key to explaining everything about the US, the burden of proof is on you to show that. Just because something gets discussed a lot does not prove that it's important. Donald Trump is himself the child of immigrants who immigrated to the US well after the end of slavery, and maintained a residence in a state (New York) which opposed slavery. The relevance of slavery to his presidency is at best unclear.
The burden is on you to have studied the subject in even the slightest detail before you mouth off with your ridiculous hot takes. There are plenty of discussions of this available.
Do you need me to spoonfeed you about where you can find them? Or do you not actually have the intellectual capacity to be able to use a search engine, or a chatbot?
