To clarify Im not a pro-lifer, by any means.
I'd say yes and no.
Yes because I think they don't want to believe that life can get seriously awful for others, in the way that often when people tell their stories of abuse, they're simply not believed. They don't want to believe that things can get really bad, that people can be capable of seriously heinous things, so they go with the idea that it can always get better. Or that things aren't as bad as you think they are.
No because when you're in the position of life always getting worse, it is incredibly patronizing (and I say that lightly) to have people tell you that things get better. It just adds to the sense of not having dignity, not being listened to, and feeling more isolated. It's like when normal people say that normal is overrated, or that it doesn't exist. I suppose it depends one's definition of normal, but when I say it, I only mean not having major health problems, being able to support oneself and being able to contribute to society in some way. Essentially, just being included. So for people who don't experience these difficulties to say that normal is overrated, is just tiring and patronizing.