That's where you drop redpills, user. The very concept of 'racism' is idiotic and only ever applied to white people. If she doesn't believe you, there's so much material even from moderate leftists that show that anything that is to the benefit of white people, whether there was any preference involved or not, is labeled 'racism'. 'Racism' means white people benefit from it, and she should instead be asking, 'if something benefits the American people, what makes it bad'? Reel her in with 'it's not a zero sum game' tier arguments and show her that this outlook is stupid.
Then show her how democratic policies (the city councils of every major city with massive nigger districts is full of dems, has been for decades, and their life quality has been degraded more and more because of them) affect niggers, as well as how niggers will benefit from Trump's policies. Many many examples for you to put together, but just one minor one here: The spics that come over the border are criminals. She's a democrat, right? She cares about getting rid of guns. Criminals don't care about gun laws. Guess what they're going to bring en masse across the border so long as it remains open? And the niggers are in constant feud with the spics that get equipped that way. Gun laws mean nothing so long as there is an open border through which to smuggle in guns without scrutiny. If she then counters that the Mexicans have gun laws, ask her what exactly those spics are running away from, if not either the immense poverty created from an extensive social system, or the ludicrous rate of violent crime (committed with guns). How are those gun laws working for them? Even if she doesn't retreat into awkward silence, you hammer unapologetically that they're working anything but well for them.
There's even more than enough leftists that are getting redpilled on how the same mudskins that claim to be 'moderates' that are 'harmless', whenever they're not the ones currently caught, turn around to enforce and teach shariah law in their communities as soon as you look away. The 'radicals' meme is dying off, and it's becoming more and more apparent that the problem isn't 'radicalization' but Islam itself. She will close her ears and try to blend it out, but what you can tell her is that she should read the fucking Qur'an if she thinks anything about Islam than that it mandates the brutal slaughter and pillaging of unbelievers. So if Muslims are the problem, what do you do? That's right, you ban them. At least any new ones coming in. Because if you don't, it's pretty obvious what happens. The Qur'an does forbid lying about being Muslim unless being a Muslim in and of itself gets you jailed or killed (or otherwise penalized) where you currently are. It doesn't forbid you from saying 'No, I'm not a terrorist, I'm not one of those ebil radical muslims. I'm a perfectly nice Muslim'. Bottom line: Every Muslim is not just a potential terrorist, but will certainly take the place of one, should they run out of terrorists that fight for their cause.
If she has trouble imagining that, picture it like this. You have 200 Muslims in a population. Only ten of them are currently terrorists. But guess what, if one of those ten dies, that doesn't mean that there's suddenly just nine of them. The other 190 will eventually realize that the unbelievers aren't intimidated enough, and the demand will lead to at least one of the remaining 190 getting enlisted. Jihadists and Muslims aren't disconnected entities. One is the application of the cause, and the other is the stock for it. Muslims are stock for jihad and will gladly serve as such at any time. The more Mudskins you get rid of, the safer it gets.
This will sooner or later torpedo her into a moral outrage on how badly you think about Mudskins and possibly non-whites in general. That's when you drop the endless articles about mudskins and other shitskins killing, raping, injuring and even eating the people that gave them food and shelter. You never end it. Case over case over case. The more monstrous, the better. In fact, show her the case of those mudkins in Britain that killed a 14 y/o girl processed her into literal kebab and then sold her to unbelievers and other mudkins to eat. That exact case, show it to her. You want her to think of that, whenever she thinks about eating kebab. She won't admit it, but from then on in, she won't be able to shake this worry, that the next time she goes for some doner, could be the one that makes her a cannibal.
And this is empty, retarded rhetoric and you need to call her out on that. What does that mean 'divisiveness'? It's just a buzzword butthurt media outlet touted around and she soaked up like a sponge. Tell her that exact thing. She probably has no idea what she's talking about.