You are just pulling that out your backside. 40 percent of the TOTAL electorate in 2004 said abortion should be always or almost always illegal. And 3/4s of those voted for Bush. In other words, over HALF Bush's support in 2004 came from pro-life voters.
So far as the platform goes...who cares?
Anyone interested in winning the election does. The pro-life, social conservative platform has served the party well since 1980.
People don't vote for a platform, they vote for candidates. If social conservatives were the dominant block in the GOP, we would nominate a social conservative...we haven't done that (you can't even claim Reagan as he ran as a strong defense, fiscal conservative) before and we aren't doing it now.
The point is, you cannot win without the social conservative vote. Folks like you act like Rudy can lose that large a block and still win. Nonsense.