Norms change. Laws change. If a family in the 60's bought walkie talkies for their children, then only after opening the box it said "by using this you agree that our radio towers in your city will intercept all communications for the purpose of selling the intercepted data to law enforcement agencies, advertising companies and presidential campaign research for profit", courts may have had an issue with it. Further, if breaking it open and disabling a chip allowed it to work but not be intercepted, the courts would probably allow the family to do that.
Now we have the DMCA that makes it a crime to do the equivalent with software. And now courts assume that a reasonable person, by buying software, understands he will have to give up the rights to your first born son in a EULA.
Without the DMCA, and with a hobbyist community online, there might be ways to break the software lock to disable some of the egregious terms of the EULA that you were unaware of when you bought the product. It would not be worth it for them to try to sue you. With the DMCA, though, you could go to jail for disabling their EULA-enforced spying/etc, so that's not an option.
But if you try to return the software, before you use it, but after you read the EULA, and they won't refund your money, then you might have a case. But even in that case, if the court thinks a reasonable person expects some ridiculous EULA, they could conclude that it was unreasonable for you to think you were agreeing to purchasing the software while withholding your rights to privacy/etc.