That's not how the burden of proof works. You claimed Eminem's politics are “hate driven,” so you need to establish that claim. I don't have to provide a complete theory of what every part of his political outlook is driven by in order to point out that your evidence doesn't establish hatred as the driving force.
And I'm not saying Eminem's politics are “peace and love,” nor am I claiming he has some perfectly coherent political philosophy. I'm saying that “he hates Trump” does not logically entail “his politics are driven by hate.” There are plenty of possible reasons someone can strongly oppose a political figure without hatred being the defining basis of their politics.
Asking me what I think his politics are doesn't answer the question. If you can't distinguish “he strongly opposes Trump” from “his politics are fundamentally hate driven,” then you've established the first claim and simply asserted the second.
And whether you think Kamala or Hillary had good policies is a separate issue. Their policies don't somehow become relevant evidence for your claim about what motivates Eminem.