Allison acknowledged scepticism in the media but stressed the team's drive to recapture past success.
Despite suffering major challenges with the zero-pod concept, Mercedes now aim to challenge Red Bull with the new W15 car in 2024.
Allison: Tiring of fake sympathy
Allison warns against team despondency and expresses confidence in Mercedes' ability to reclaim F1's summit, urging unity to counter negative narratives.
“I think the sense that we’re all in this together and that people have written our future for us – ‘the once-great team now in decline’ – all of the negative narrative that can come around with that," Allison told the Performance Podcast.
“As long as, internally, we’re saying: ‘Let them say that.’
“That’s their job, they’ve got to say something. But our job is to show them they’re wrong.
“And imagine how good that’s going to feel, when they’ve all been looking sympathetically at us – or with faux sympathy in our direction.
“We’ll just suck that up and go: ‘Okay, right, we’re going to work on this and we’re going to come back and we’re going to show them.’
“That is definitely a galvanising thing, as long as it doesn’t spill over into a negative, victim complex and it’s more just the cheerful application of the skill in this place to come out and surprise people.
“We’re not going to go quietly into the night and, actually, this is a place full of extraordinary talent and people who have got absolutely everything they need in their head, their character and the equipment we have here at the factory to be resilient to this and show that we can rebuild and produce a car that is deservedly at the front once more.”