But it's likely a facet of the nation he doesn't want change, an alteration he doesn't want to see made.
According to who?
From what I know of his character, he doesn't particularly strike me as sympathetic to elves.
He's not sympathetic to elves. He's also not racist towards them.
I'll invite someone to refresh my memory from the actual book if I'm wrong, but the only time in The Masked Empire that I can recall Gaspard making any negative political move in regards to race was the play against Celene, which had as many religious insinuations as the racial one and was an attack on Celene.
To which Celene's response was to sack a restive elven city.
Past that... I can think of nothing Gaspard does in advocating for or against the treatment of elves in general. I can't even think of him advocating on rolling back Celene's reforms.