Yes, I agree banning legal abortion would be a dreadful thing, resulting in two very definite outcomes: unwanted babies being born to unwilling mothers, and illegal abortions taking place, with resulting danger to the mother taking place.
My whinge against religion in general is that it can cause people to act in an irrational way that is harmful for themselves and others. Misogyny is one reason - hence the aborted female fetuses, and fewer rights for females in general.
There are many other problems:
Catholic men joining a priesthood that demands celibacy - a recipe for sexual disaster as we have seen.
Fights, battles, wars and genocide between people who resent and hate the beliefs of the other side.
Huge amounts of money being taken out of society and landing in places like the Vatican, or the bank accounts of televangelists.
Children, still too young to recognise manipulative bullshit, being scared witless by the prospect of burning in hell.
The irrational use of guilt to control young people - this is especially so in the catholic and Jewish faiths.
Political and religious leaders the world over cynically use religious beliefs to manipulate their populations.
Of course, not all religions cause these problems, and the christian establishments in England are among the least harmful anywhere. (I can't say that of Australia as the horrors of our catholic establishments are still coming out, and the new royal commission will show a lot more)