I would say the numbers are pretty much showing a party who is not really against abortion
The name was chosen to emphasize information based on polling that consistently shows that a majority of Republicans support legal access to abortion in at least some circumstances. In 2009, Gallup reported that 66% of Republicans agreed that abortion should be legal in some (54%) or all (12%) circumstances.
[2] A Gallup poll in 2011 found that 27% of Republicans identified themselves as "pro-choice".
[3] However,
42% of Republicans support legal abortion during the first trimester.[4] In 2017, Gallup released polling information showing that
36% of Republicans identified as "pro-choice" and 70% agreed that abortion should be legal in some (56%) or all (14%) circumstances.[5]
In 2018, an
NBC/Wall St Journal poll found that 52% of Republicans supported the
Roe v Wade Supreme Court ruling and did not want said ruling to be overturned.
[6]
https://en.wikipedia.org/wiki/Republican_Majority_for_Choice