The thing is that people who are pro-life are also usually in a political spectrum that reduces rights for others based on religious principles. They don’t want gay people to marry or adopt. They’d rather hold on to legislation that was written centuries ago regarding guns than do anything to protect everyone from this mass shooting madness we’re in. They seek to censure an erase lives that are unlike their principles. So most of the time is not a single issue you’re voting against it’s a cornucopia of bigotry.