Well, democracy isn't only numerical advantage, it's also debating procedure and electoral system. If you just duplicate yourself, I think there are many questi

Well, democracy isn't only numerical advantage, it's also debating procedure and electoral system. If you just duplicate yourself, I think there are many questions about whether you really want it and your identity before just using it for political takeovers. Historically an argument for narrow suffrage (e.g. only for landholders) was that economically dependent people are also politically dependent on magnates. These limitations did exist, though of course they're very corrosive to non-political rights as well. One can also try to make people economically independent, like it was done in ancient Athens by paying you to participate in the assembly and courts. I'm not arguing for anything in particular, just pointing out that it's a class of problems that had already existed in discourse in some way.