Saying that holding a particular opinion makes you irrelevant is not gaslighting? It's not nice to respond to a frustrated developer by saying they don't exist. It feels comparable to saying someone's concerns are not real, which does amount to gaslighting to me.
No one says graphene os doesn’t exist, or the developers don’t exist, just that their opinions don’t matter because they are a miniscule fraction of the market. 2% of active devices drives no decisions at Google.
Gaslighting is making a person question the validity of their own true memories.