Well the whole premise of voluntaryism/market-anarchism/libertarianism is that disputes should be handled through reason (through contracts & agreements) first, not guns (from legislative fiat).  That's why we like to debate. 


EULAs are totally invalid contracts.  There is no "meeting of the minds" whereby two parties come to a mutually-understood agreement.  There is almost zero effort by these big corporations to communicate in plain English what exactly all that legalize BS is saying.  And then they hide some little innocent looking phrase cleverly hidden in the 20 pages of dense text that gives them carte-blance to do whatever they want.  Each party must understand what he/she is agreeing to inorder for there to be a valid contract.  At the minimum, there would need to be some multiple-choice quiz after the end of reading the damn EULA to ensure that I, the user, actually understand what I am agreeing to.  The other glaringly obvious flaw with EULAs is the fact that I don't actually have to sign it until after I have purchased it from the store clerk!