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.
Gaslighting is making a person question the validity of their own true memories.
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.