Its totaly easy:
No, you will not get the hobby revolutionary this way who really wants to “fight the man”, but you surely will scare away the nepalese version of the average joe and with this effectively killing the networks there for main stream adoption.
Well, i am pretty sure Israel will find other happy buyers for their goods… and the dockworkers will find new jobs soon.
Or better: Proof that we (as EU) have bigger problems at the moment.
Websites you can block via DNS - yes, i know that this can also be fairly easy circumvented - but the folks who know this are NOT the target audience for state action like that.