I do not see how sabotaging bitcoin itself could possibly work, and anyone who believes otherwise is underestimating the intelligence of this class of people who they dislike/fear so much. My opinion is that we will get to see a cryptocurrency-ubiquitous world monetary system, the concept is too powerful to ever be restrained. If you've spent enough time thinking all the consequences through, you should see that.
The most effective way to sabotage Bitcoin is to allow critical portions of the codebase to bitrot and block or delay critical improvements such that an alternative that is more palatable to the establishment would appear artificially viable by comparison.
Did you know, for example, that parts of the script validating code relies on undefined compiler behaviour that effectively makes gcc-specific quirks part of the Bitcoin protocol?
Instead of this being treated as an important bug that should be fixed it's just used an an example of why there shouldn't be diversity in implementations. After a while bugs like that start looking less accidental and more weaponized.
It's also kind of funny that when you collect quotes from the core dev team you find that Bitcoin inhabits a state of superposition between two states: it's simultaneously "just an experiment" and also a "critical piece of code which a lot of money is tied up in" depending on whether you're asking for quality accountability or asking for innovation.