Earlier quoted context omitted.
Let's take a modern example of the canadian truckers. How would you get money to them when Canada was able to get US companies to block their funding with fiat? Use a different company and hope another few million doesn't get locked up? That seems like the only alternative and I'm not sure many people would think that's a viable alternative.
Again, I'm not sure "temporarily skirt the law" is all that viable long term.
I am sure countries will want to censor it, but I don't believe they will be able to, as such the only risk to bitcoins long term viability is the markets demand. There are numerous examples of illicit goods that governments have proven incapable of reducing the demand for, e.g. drugs. So I don't think bitcoin is going anywhere.
I think bitcoin will take a different censorable form and we'll start seeing companies on top of the blockchain that can do things like refund unauthorized transactions and things of that nature, but the base layer will remain uncensorable and thus bitcoin could become both convenient enough (although not better, in my opinion) for rich countries to use as currency while holding the characteristic of providing tremendous benefits to citizens in oppressed poor countries.