Even if it passes, i wouldn't be very hopeful. Look at Europe, all those countries have better and more democratic election system than USA, but there are fascists on the rise in each of them and shit like in France and Poland happen more and more. Also what's the use of having more parties if they still all represent the same influence groups (for example in Poland we currently have 17 parties and 42 independents on 460 seats in sejm, but you won't find anyone outside of neoliberal status quo).