Seriously, grow up. You’re not being Gaslighted because someone wants to play an Alliance alligned High elf.
In fact, you’re the one attempting (And failing) to gaslight people by insisting that it doesn’t make sense lorewise. High elves on the alliance has more lore to them than half the playable alliance races and have been there since Vanilla. You should know this if you RP on alliance as you claim.
This by the way is super catty and this kind of disrespectful attitude to the Lore and other players would get you kicked out of most roleplay guilds, Alliance or horde.