I agree that baby may not be being left to cry.
my 14 month old woke at 5am this morning. he came in with us for a feed, and then proceeded to cry non-stop until around 7.30am
he was in our bed, he was offered breast, he was cuddled, he had a dummy, he had a comfort blanket, he was walked, he was offered a bottle of oat milk, he was tried back in his cot, he was left by himself for a few minutes (something I never normally do)
nothing, but nothing, would stop him. he was, i suspect just very, very tired but for some reason just couldn't calm him down.
i did shout at him to just go to fucking sleep already. but it didn't work
you aren't being unreasonable to be annoyed by it. I would be too. but seeing as there isn't much you can do about it then I'd suggest thinking of ways to shield yourself from the noise.
ear plugs?