In theory I’m thinking that all internet providers could effectively terminate anyone running or executing code relating to Bitcoin and then subsequently this would take it offline.
I like your imagination, but that’s not necessary. If you want to see Bitcoin die in the future, regulation is the key. If governments worldwide declare Bitcoin illegal and enforce severe penalties, such as serious jail time for anyone caught using it in any way, people will stop using Bitcoin.
Look around, how bitcoiners are happy that governments of countries have paid attention to bitcoin, are creating reserves with bitcoin, somewhere even legalizing it and, moreover, making distant financial plans. These are the 1st steps on their part to "crush" bitcoin for themselves, to accumulate and accumulate more. The next step will be a ban on use (and/or storage) and confiscation (why buy if you can take it away, right?).
In general, it is strange to observe when bitcoin was born as an alternative to the traditional monetary system, but over time begins to be absorbed/mixed with this very system,
"against" which it was created. And it is no less strange when people call bitcoin "
financial freedom", but are impatiently waiting for integration by countries, governments, central banks, which has little to do with freedom.