Steemit and bitcoin are two peas in the pod. And while I tend to agree with you about Steemit having a long way to go before dethroning bitcoin, I think that is really just a question of the web user experience at this stage. Once that is set, then I see no reason that steemit wouldn't steal most of Reddit's users, and most of Quora's users.
If steemit integrates webtorrent, it can begin to compete directly with YouTube.
The list really goes on and on. I'd also love to hear about attempts to integrate with MaidSafe.
You can read my post regarding switching from Reddit: https://steemit.com/steem/@glib/take-the-rid-of-reddit-challenge-with-me
I wouldn't say Bitcoin and Steemit are "two peas in a pod" at all. All they really share is the fact they are crypto-currencies and each use a blockchain. That definition would make all cryptos "peas in a pod". I think there probably are some more people learning about Bitcoin since they have to sell steem to get bitcoin so that they can do anything with that "money". Once there is a direct steem <-> fiat pipeline they won't really have much to do with each other. Also, the two have rather different use cases right now. I'm rooting for both, but I have much more long term faith in bitcoin.