NewLife, I think Purple's response is perhaps better than mine in explaining. I'm a bit hungry and about to make dinner so sorry if this reply doesn't make sense - however...
No - of course you can't avoid it in RL (which FB is a part of of course). In the last 18 months I have seen more pushchairs and parents than I ever have before. I have seen that everything in society is geared around families and kids. Believe me, I know you can't avoid it, so when there are extra little movements like this, it adds to it.
HOWEVER - again, I don't think anyone on this thread (may be wrong) has said "right! Let's ban this shit from happening!"
Instead a few people have said "yes, it has been an extra source of pain lately". There's been longing and some hurt. And there's been some shrugs and don't-care or don't-like-Facebook-anyway responses. And then there's been the "how dare infertile people say things like this, they're just being professionally offended for the sake of it" responses.
So my question is - why aren't we allowed to say that something's stung us? Here on an anonymous forum of all places? If Mums are "allowed" to feel one way about an FB trend about being a mum, why can't non-Mums too?
If you see it as an "omg eye-roll whinge" moment, just flick past the thread and move on surely?
If it's some weird form of guilt or something on a "have I hurt someone on my newsfeed?" sort of way, FGS deal with it and don't tell us off for having the emotional response in the first place...
Or who knows, maybe I'm just extra hungry. Will stay off MN until am well fed again!