It matters, similarly to haow it matters that you have more choice in Internet providers than a binary choice of either 1) cable or 2) telco-provided DSL.
Countries where multiple parties feasibly compete have the possibility, at least, of a disruptive new party taking share.
The American system, like the American ISP market in most of the country, is so rigged for the two corrupt incumbents that you basically always have a choice of light dark gray or dark light gray.
I live in Japan where we have a wide range of competing ISPs and political parties. Both Internet service and political representation are vastly better than in my native USA.
(Admittedly, the former more so than the latter...)
Countries where multiple parties feasibly compete have the possibility, at least, of a disruptive new party taking share.
The American system, like the American ISP market in most of the country, is so rigged for the two corrupt incumbents that you basically always have a choice of light dark gray or dark light gray.
I live in Japan where we have a wide range of competing ISPs and political parties. Both Internet service and political representation are vastly better than in my native USA.
(Admittedly, the former more so than the latter...)