I expected this argument. But it is not a fair analogy. These protocol (TCP/IP on one hand, Bitcoin on the other) are not from the same nature. One is about finding the common ground for connection and communication and the other one is about creating digital assets.

From day one, 'the market' didn't feel the need to create hundreds of TCP/IP protocols. While it is in the nature of the blockchain to create hundreds and millions of different digital assets. Nobody decides if we should create more protocol of one kind or not. It is in the nature of the protocol.

1. Is greed causing this problem?

Greed is a driving force. While I do understand why we should pay attention to our own greed and not be overwhelm by it, whether we like it or not, it contributes to put people to work, to try and create company that will be useful to the community.

Most startups fails, it is the same with this new generation of blockchain organisations. Most of the crypto will fail. Should we stop this? No. On the contrary. Why ? because the bitcoin ecosystem move carefully but too slowly. Other entrepreneurs want to push new ideas, if the bitcoin ecosystem refuses, the best thing is to create another projects. That is why you have Ethereum, Steem, Next...

I observe the crypto space for a while now, and I have seen that at first, it was only scam coins with no additional value proposition besides Bitcoin. Now, the landscape has changed, if you look at the first 30 cryptos, you'll see that the value proposition of those token are more and more about providing another service than money.

1. Are we shooting ourselves in the foot by over complicating this space for regular people?

What are "we" exactly? There is no we who decide. Just independant people and teams who choose different paths because there is no reason to choose a common one. Moreover, I think that regular people will come into this space through very different ways. Steemit for blog is a good usecase. Incent with Merchant. ArcadeCity for ridesharing, Dash as well for the money ...etc It is less about complexity than possibility of adoption.

So while you propose that 'we correct our mistake', I really think that there is nothing to correct per se. The crypto ecosystem as a whole is breathing, metamorphosing continuously spreading in every direction. It is not a monolythic ecosystem that is going to hit a wall.