I guess the easiest way to do this is one by one...
No they aren't.
Black women make up only 13.9% of all women in the US. I imagine if you break that out into a) poor, b) single, and c) mothers, the percentage is way lower.
If what you meant was the "poor black single moms" gave birth to the most children, that's incorrect also.
"Of all live births in the United States during 2020-2022 (average), 24.3% were Hispanic, 51.5% were White, 14.4% were Black, 0.7% were American Indian/Alaska Native and 6.4% were Asian/Pacific Islander."
Sustained low birth rates may indicate that the population is aging; sustained high birth rates may predict a younger population. Birth rate data and trends can tell a story.
www.marchofdimes.org
Not the majority.
Single family:
In 2022 the percentage of black children living with their mother in a single family household was
45.6%.
Find answers to frequently asked questions about: Living arrangements of children by race/ethnicity, 1970-2022
ojjdp.ojp.gov
Poverty:
"The child poverty rate is also higher for certain racial and ethnic groups. In 2022, the child poverty rate was 25.9% for American Indian children, 19.5% for Hispanic children, 17.8% for Black children, 11.2% for White children, and 9.9% for Asian children."
Childhood poverty is a tragic problem affecting millions of children in America. Learn how to fight child poverty in your local community with United Way NCA.
unitedwaynca.org
Okay. I mentioned "black" zero times. You said "black" three times. You took it to a racial place to, I guess make some imaginary point you wanted to make. But the posts, and the stats, don't support you.
Abortion is an important way for all women who don't want children, and aren't in a position to take care of children, to keep from bringing children into the world that would be less likely to have successful lives. It's not the only way, but it's an important way. And not only allowing it, but supporting and financing that decision benefits all of us.