You're welcome, Chief Pays No Bills.
As usual in this type of situation, you could say Drunk Uncle is a negative character so people shouldn't believe what he says. But he could've been negative about non-Indians and their attitude toward Indians. The writers chose to criticize Indians, and people will remember the words, not the context.
I believe this is the eighth time SNL has mentioned Indians in the last two years, which is an impressive amount. Unfortunately, most of those mentions have been negative, not positive. Keep trying to get it right, people.
For more on Saturday Night Live, see "Village People" in Saturday Night Live and Victoria's Secret in Saturday Night Live.