It is by far one of the worst pro choice argument.
That is like saying, "burglary being illegal puts the lives of burglars in danger because the country allows for self defence. so we should make burglary legal".
Or, "Heroin being illegal puts the lives of dealers and consumers in danger because of the law and the problems of fentanyl spiked products. People do it anyways when its illegal, therefore we should make heroin legal and thus safer."
Every time I hear this argument I have to role my eyes. Abortion becoming illegal would save the lives of millions. Does that mean that some women will still find a way to get them? Of course. And it might put their lives in danger. But it will be 100% dangerous for the unborn anyways. Still, the point is that millions would be saved. The legalisation of abortion ensured the deaths of millions of unborn. The criminalisation of abortion will save millions, while those who choose to break the law will be in danger of their own doing, just like a heroin dealer breaking the law on his own accord in a dangerous business.
Criminalisation of abortion will save lives. Those who choose to get one anyways and suffer infections and even death, that is on them, not on the law that saves lives. It does not control women's bodies anymore than the laws that criminalise murder and theft do - laws that bind all our bodies to a code of conduct.