I have seen from multiple sources (probably all from the same Warrriors source) saying that the warriors are saying that Kuminga is not up for trade.
They say he is viewed by the Warriors as a potential star to help support Curry now and for them to transition to a post Curry future.
So, I guess that includes Curry, but those are the only players that, as of now, are not on the trading block.
That's how I read it. Anything can change but these statements come after the Kuminga drama has played out.