Based on the way the progressive stack works, I think he'll mostly get ignored. He is gay, but he is white, and a participant in the sacred advocation of sports. Blacks get the highest priority for glorification in sports, way more than any other group. If he does not wear rainbow shirts and sparkly shoes, he will never come on the radar of most American sports fans.
Which is why he probably will end up doing that. His decision to "come out" was absolutely a calculated political move, designed to give a boost to his career. If coming out by itself won't give him a big enough boost, he'll take it further and further until he gets the attention he craves.
While blacks are glorified in sports far more than any other group, there have also been plenty of black people who have been punished by the globalist elite for having negative opinions about homosexuality. Gays typically outrank blacks in the non-sports political hierarchy, so I don't think this is as simple as "the straight black will automatically be glorified over the gay white."
At the end of the day, homosexuality is just another wedge issue used by the globalists to attack the common people. Homosexuals have always been around, but it's only in recent decades that it became a divisive political issue. The whole idea of "gay pride" would have been unthinkable and laughable throughout the vast majority of history by everyone, including the gays themselves, who in the old days had enough sense not to rub their sexuality in everyone's face. But then the communist agitators came around, spreading the myth that homosexuals were "oppressed" (just like the commies targeted women with feminist propaganda, brainwashing them into thinking they were "oppressed" and that the way to "get freedom" was to wake up to an alarm clock five days a week and take orders from a boss).
Sadly, many of the members of those groups, whether homosexuals, women, blacks, immigrants, etc. have fallen for the commie propaganda, blaming "those damn straights/males/whites/native born Americans/Europeans," etc. for all their own problems. From looking at Trey Cunningham's self-aggrandizing coming out ceremony, it looks like he's a classic case, with "da evil straight man" as his scapegoat.
I don't root for black athletes because they're not my people, but at least being black is not a sin. I can't root for an unrepentant homosexual. Pray for him, yes, cheer for him, no.