The essence here is that there's nothing like doing that one thing you love and if you truly love it, does it matter if you have company for it?
This monologue from this unfairly maligned film is a complete detachment from any attempt at acting as a character in the Old West and more a stand-up routine as told from a guy living in the 19th Cenutry.
we Italians, we got our families, and we got the church; the Irish, they have the homeland, Jews their tradition; even the niggers, they got their music. What about you people, Mr. Wilson, what do you have?
Sugarpuss O'Shea (Barbara Stanwyck) is deeply entrenched in 1930's slang and her jargon is even a plot point of this film. Naturally, every bit dialogue she utters is a lot of fun.
This line of dialogue masterfully navigates the tension between the two characters as Hart is living in Kingsfield's shadow throughout the movie. The conversation between the two figures is extremely limited before this moment causing this to come off as an explosion of sorts.