I suspect that my definition of "loud and obnoxious" is a little different from the definition held by snooty white liberals on a wine tasting train.
Doesn’t matter. The fact is there were complaints and based on these complaints multiple warnings were issued by the conductor who is THE authority on the train.
At that point it is incombant on the group to ACKNOWLEDGE the authority and tone it down. If they felt mistrated they had the right to address it After the train ride.
Using your logic anyone can behave as they please because they are the sole arbitor of wheter or not their behavior is approprite.
And you know all others on that train were a) snooty, b) white, and c) liberals, how, exactly?