Abdul needs to do this work himself. You can't outsource this. It's on him to establish that bond of trust with the voters. Others can help, but the skepticism is real and only the candidate himself can really fix it.
You all make these demands and declarations every election cycle for yourselves. But every time your favorite loses the Black vote it becomes someone else's job to get the blacks in line for them. You never demand that your new hero put themselves in front of Black voters.