[ghosts_]

ISP's could easily stop Bitcoin, I don't really think anyone claims they can't? Bitcoin isn't mean to be an impossible to kill hydra of economic power, but a decentralized, peer-to-peer, trustworthy ledger of transactions.

ISP's could block the common ports Bitcoin uses (but that would likely break a lot of other applications), they could potentially blacklist certain IP's, but because of the decentralized nature of Bitcoin this would likely only affect discovery in a minimal manner. ISP's could also inspect packets to determine if the traffic is Bitcoin related, but potentially something like TOR could prevent that inspection, if enough ISP's inspect & block Bitcoin TOR would likely not be of help (as it simply protects the transit of data, not the entry/exit).

BGP is also a pretty serious vector for a bad actor ISP to utilize, check out the following article: https://www.theregister.co.uk/2017/04/11/evil_isps_could_dis...

Definitely a lot of ways BTC could be affected. Governments could also outright ban it and that would destroy the network as it would lose a huge amount of value as a serious asset.

[ghosts_]

Adding to this - ISPs likely would never try any of the above, simply because it would hurt their public perception, isn't worth the time, and is potentially illegal depending on the area.

[buboard]

in which countries?