I don't think Trump really hates anybody...He just says whatever the group he's speaking to likes to hear.

Let's agree to disagree on this one. Trump is the the modern day embodiment of the southern strategy.

Here's a small sampling of a lifelong racist saying and doing a bunch of racist things:

In the 1970s, Trump was sued by the Justice Department for discriminating against Black apartment seekers.

In the 1980s, Trump took out full page ads calling for the death penalty for the (later exonerated) Central Park Five.

Trump was a prominent figure in promoting the false "birther" conspiracy theory questioning President Obama's birthplace.
Research has found a strong correlation between birtherism and racist attitudes.
The birther movement represented more than just false claims, it was an ideological statement about who belongs in America, with strong racial undertones.
The birther movement is an extension of a process of "othering" that begins with anti-black racial animosity.

He retweeted white supremacist accounts and false crime statistics about Black Americans.

Trump referred to some African nations as "shithole countries."

Studies found that racial resentment was a stronger predictor of Trump support than economic factors. (I found this study to be particularly interesting.)

Former staff members like Omarosa Manigault Newman and Michael Cohen have alleged that Trump used racial slurs in private.

He called Covid "kung flu", a wildly racist term.

He tweeted an image that showed Hillary Clinton in front of a pile of money and by a Jewish Star of David that said, "Most Corrupt Candidate Ever!"

At the 2017 white supremacist protest in Charlottesville, David Duke, the former KKK grand wizard, said that the rally was meant "to fulfill the promises of Donald Trump."

Here's the documentation proving that a lifelong racist said and did a bunch of racist things...

scholarship.depauw.edu - Politicalscience facpubs

cambridge.org - Genesis of the birther rumor partisanship racial attitudes and political knowledge

https://www.tandfonline.com/doi/full/10.1080/21565...

apnews.com - Fact check trump racism election obama

vox.com - Donald trump racist racism history

If you prefer videos, here's a short one from Brave New Films:

Donald Trump: A Racist With Racist Policies

YouTube: Donald Trump: A Racist With Racist Policies • BRAVE NEW FILMS (BNF) (Brave New Films)