Ah, but Stevie Ray Vaughan was a white bluesman.
The bigots call that ‘cultural appropriation’.
It’s quite possible the vandal(s) knew who SRV was, and did the vandalizing for that reason.
OTOH, it may well be that the vandal(s) didn’t know, and just targeted because white male.
Either way, I hope the responsible party / parties are found, and charged.
Just kidding; I know better than to hope for that.