A good analogy.
Who would have ever thought the USA would go that way by choice?
Meanwhile the rest of the world has no concern about the purely imaginary security issues of DJI.
Is this a new Macarthyism?
I think you are giving 'them' way too much credit. I doubt 'they' put any thought into this at all except how can they force more $$ into their accounts.
I find it difficult to believe that a retroactive ban would work out well. The rules could be on the books, but only a small percentage of DJI uav owners would comply.
There is nothing (currently) stopping DJI from making the current, FCC approved, models for as long as it benefits them. The rest of the world will get the new models and we will be like Cuba and their cars. But, you'll likely be able to...