One of the things Black people who speak up about racism, as well as those who are trying to be anti-racist allies, hear often from others is that they're "tired" of all this talk about race. "Not everything is about race." "Why don't we ever talk about happy things like ice cream and rainbows?"
First, we can talk about what we want when we want, on whatever platform we're afforded.
But more importantly, if you're tired of reading or hearing about incidents of racism and bigotry, try to imagine for one minute — really, spend 60 seconds considering — how exhausting it is living with these kind of incidents.