The answer to you first question is, in part, because no one came up with the concept until recent years. Not to mention all but Reagan were RINOs.
I see no reason to accept that it won’t happen in my lifetime even though I agree that it likely won’t. That’s a defeatist attitude that I won’t indulge in. At any rate my comment wasn’t based on expectations.
Do your "recent years" also include Thomas, Alito, Roberts and Gorsuch?
Why is it that only Republican nominees come under the spotlight of abortion rights and become a major MSM issue and not Democrat nominees?
Why is it that only Republican political candidates are put under the spotlight of abortion rights and not Democrats?
Is it possible that not all Democrat politicians support abortions but are immune from MSM scrutiny on that subject? Of course it is.........But you'll never hear them called on the carpet to defend their beliefs.
Pro Life is the biggest red herring that the MSM uses to divide Republican politicians from the voters in virtually every election while the Democrats get a pass........