I don’t think it is fair or productive to lump all Evangelicals into one pile when discussing sanctity of life issues.
My brother Peter is an Evangelical pastor, and he takes right-to-life issues very seriously and preaches such to his congregation. I personally know several Evangelicals who are appalled by the abortion mentality that is so pervasive these days.
It may be helpful to remember that although most or all who call themselves Evangelical have a similar approach to the bible and to Christianity in general, there is a wide variety of beliefs on specific issues facing Evangelicals in the modern age, and there is more liberty of thought and conscience in Evangelicalism than most non-Evangelicals realize.
In my understanding and experience, Evangelical Christianity is a spectrum rather than a monolith.