I understand your concerns and share a few of them. Here is a few of my thoughts.

If you look at several years history your will see that this is the 3rd Bitcoin crash. Usually when bubbles pop, they pop. But like the phoenix rising out of the ashes of market carnage, bitcoin and the alt coins keep rising back from the graves that commentators and those in the supposed know have dug for them.

Governments can screw with the rise of crypto, but to stamp it out of existence they are going have to shut down the internet. And every day that crypto lives to fight on and is adopted by another segment of the population, it wll get more difficult for any government to stop without hurting itself. As the Goldman Sach's of the world jump on the bandwagon, it is even less likely that a government will actively oppose it. They will just look for ways to tax it.

Tether is an elephant in the room because there is no proof that it is what it claims to be...fully one to one pegged with the dollar. If (or when) that baby goes it will leave a mark and probably initiate another crash.

Banks do not like the competition and that crypto, in large part, cuts them and their transaction fees out. Bankers are an ever present danger to the crypto economy as they own so many legislatures around the world. If peer to peer transactions start being the rage instead of a novelty, look for them to howl the loudest.

The crypto space is less bubble then a market with a lot of weak hands and first time investors who have put in the rent money and maxed the visa card to own a quarter of a bitcoin...which does make it kind of frothy. This last crash chased a lot of people out who needed to have a stronger personal financial situation before gambling on the market. And that is good for the situation going forward. The bad is that it will slow the climb from the crash bottom as weak hands that have learned their lesson will be selling all the way up so that they can pay the rent.

Its pretty hard to get traction on Steemit without believing in the viability of the Steem and the SBD. Me, I just shifted some of my ETH holding to Steem. Just traded some eggs for other eggs and moved them to a different basket. One can function on Steemit without investing personally or believing in the fuel that makes the engine run, its just going to be a slow, and I think, harder pull.