The time to come together in unity and compassion was the election. That's long since passed now. He showed everyone exactly who he was while campaigning for his first presidency, and every single second since then.
If you were still unsure about his leadership qualities, his first presidency was filled with him throwing others under the bus, telling blatant, significant lies with every speech, betraying our allies for political gain, bungling the pandemic response and needlessly destroying hundreds of thousands of lives, spending more time golfing than doing his job, and concluded with him attempting to overturn the election by pressuring states, participating in an illegal scheme that involved fake electors, and inciting an insurrection at the nation's capitol. Oh, and he was impeached twice.
But if racism is the final straw for you to stop supporting this draft-dodging, ableist, lying, rapist, 34-count convicted felon, great; but that was on display, too. He called places with brown and black populations "shithole countries", issued a ban on immigration from Muslim countries, criticized Puerto Rico and dragged his feet on helping them after a devastating hurricane, pardoned Arizona racist Joe Arpaio, convicted for his illegal "worst pattern of racial profiling in US history" (DoJ), harshly cracked down on peaceful Black Lives Matter protestors, including tear-gassing them at a church to disperse them and use the location as a photo-op.
I won't go through all the examples, but the end result is if you voted for him in 2024, you either ignored or approved of his racism. Unfortunately, it's now affecting many innocent people, some of whom you know...