I also second Janice's thoughts, even if that means I'll be agreeing with Bobert this time. Now as for Bobert's "proof" that the USA has a one-party system, I suggest that he visit my native country, just 150 breezy kilometers south of Key West, and take some careful notes on what a one-party system really is. I suspect Bobert has been listening to too many songs by the likes of Jim Garland, Florence Reece, Sis Cunningham, and Sarah Ogan Gunning. For example:

Take the two old parties, mister,
No difference between them can I see,
But with a Farmer-Labor Party,
We can set the people free.

From I Don't Want Your Millions, Mister
by Jim Garland