Agreed we shouldn't drop it. We must push on and continue to improve our technological options. And Bitcoin serves an important function even if there were other options, e.g. it drives market awareness and provides a liquid unit-of-exchange for investors in the ecosystem including altcoins. This is a dynamic system. I am arguing to be open to the dynamism in spite of the lack of serious altcoins to date. There isn't only one scenario (false prophets lead you to that wrong conclusion). And it doesn't mean no one will retain some gains from the mess. As they say, "don't put all your eggs in one basket".
To win, we need the antithesis of top-down thinking, e.g. stop this monotonic thinking that we need one unit-of-exchange to get global economies-of-scale. The goal should be more akin to the bimetallic standard, a bifurcation (or perhaps multifurcation) is much more dynamic and dynamism is our strong hand against top-down control (read at my signature why top-down control can't anneal). Whether it happened by chance or was planned, Litecoin is a weak silver to Bitcoin's gold, i.e. it doesn't offer the common man some compelling strengths.
Peace.