Mass surverillance, mass punishment, mass censorship. You have a vast amount of information that people are not allowed to communicate to each other, even inside their most private communication.

> By what logic is it considered a proportional or effective punishment?

Nobody claimed that it is considered proportional. We're dealing with a topic that key stakeholders like Mark Getty are describing as the "Oil of the 21'st century". Considering that all copyright matters are decided completely behind closed doors (ACTA for example has been even declared a "national security secret" by the Obama administration, to prevent information about upcomming laws to leak into the public, to decrease the amound of opposition before its too late) and that all copyright jurisdiction is basically routing around democracy and public participation since its emergence in monarchistic Europe, they simply dont see the need to present those measures as proportional because they know that (in the near future) no population will ever be allowed to vote on it.