to have struggled not to laugh in his face

[MeAndCoolioDownByTheSchoolYard]

On the bus home from town. DS (17 months) had just fallen asleep when we got on. A couple got on a few stops later with a 3-4 year old and then a toddler and a newborn, the latter two in some kind of behemoth double buggy the size of a camper van.

I got up and tried to squeeze my buggy sideways (even though I was wondering what they were seeing that I wasn't as there was no conceivable way they were both going to fit.) Mine wouldn't fit fully sideways because of the stupid pole so had to sit slightly diagonally. The mum then started stropping and asking me to move even though there was no other possible way I could have moved it that would have let theirs fit (apart from me taking a sleeping DS out and presumably handing him to a stranger while I collapsed the pram).

Her partner then said (passive aggressively to another passenger rather than to my face) that I should have got off the bus and waited for the next one as they had a newborn and therefore priority.

AIBU to think he must be on glue? If you go on public transport with such a big contraption surely you have to accept that you might sometimes have to wait for a bus with no other buggies? Or maybe put the newborn in a sling and then use a normal size pushchair for the toddler?

Home now, kettle is on. Eurgh.

chocorabbit that probably would've been better than silently cursing him and everyone he loves but I fear if I write another formal complaint to a company I'll have officially turned into the Lady of Letters!

Here's a thing I have been wondering about: mobility scooter v. pushchair - which one should get priority? And should mobility scooter even be on the bus? Assuming that person on the scooter is healthy enough to get off it and go to the bus on foot.
I genuinely don't know and curious.

YANBU I was sorry to see that unpleasant situation happened to you and I'm also annoyed at your bus driver for not stepping in and for letting them on in the first place! By letting them on he had their and your buggies in a not-as-safe as could be position, as buggies are supposed to fit in like wheelchairs do, with handles to the back.