Fair question. In my view, it's largely about the continuing aftereffects of "redlining"- the U.S. government imposed internal economic embargo on Black, Brown and working-class white neighborhoods in the late 1930s, which turned neighborhoods that had been fairly prosperous into economic dead zones- the social assistance rules which forced two-parent families to become single-parent families simply to get enough assistance to feed their kids IN those artificially created economic dead zones- institutional racism, including institutional police racism, and, to a lesser degree, the overall effects of the increasing economic and social equality and hopelessness caused by post-1981 "neoliberal" economics, as imposed by Reagan, both Bushes and Trump and left completely unchallenged by the Clinton Administration-whose entire political project was about getting the Democratic Party to pander to and embrace most of the "white backlash" narrative- and the Obama and Biden Administrations, which also pandered to that narrative out of political cowardice and a pointless obsession with the idea that poverty is caused not by economic injustice and institutional bigotry but "bad choices".
I mentioned hopelessness in their because that was also intentionally created by the white supremacist power structure, which saw a hope-based, motivated, striving Black community, genuinely believing that it had a chance to get somewhere in this world through personal growth and being "on its game", as a mortal threat.
That's largely what I see the issue as- and I'm not following how forcing Black women to either have as many kids as they are physically capable of conceiving OR forcing them to be celibate- an unnatural condition for the vast majority of the human race- is going to do anything to reduce poverty. There is no evidence that any community, anywhere, becomes more prosperous as a result of an increased birth rate.
I also base my views on the subject of reproductive choice on those of the vast majority of Black women whose views I have heard expressed, who see a ban on abortion- especially if accompanied by a ban on contraception, as something that dooms Black women as a group to poverty, oppression and hopelessness.