His lies about Obama's birth certificate, his defense of white supremacists (including the ones on his staff), his attacks on Mexicans... his calls for a ban on Muslims (except from countries that pay him a lot of money as it turns out) are all far more recent.
There's not a debate about Trump's racism.
And did you actually justify not renting to black people because of what one of them did.... Sure you did. You're pretty racist yourself.