I've always viewed those as entirely invalid, at least from the standpoint of the spirit of our various legal systems and cultures. I recognize that any "binding arbitration" bits are enforceable (and an injustice). But the rest of it? Literal make believe. I will do as I please with the hardware that I paid for, its firmware, and any software that it came with. I will actively aid and abet anyone who seeks to reverse engineer same, circumvent associated technical measures, or evade the law while doing so. And all of that is good and virtuous behavior that improves society as far as I'm concerned.
In other words - go ahead and click "I agree" without reading it, then proceed to dump the firmware or whatever else it is that you want to do. You aren't lying or otherwise doing anything wrong. The legal system is just broken.
The fact that such a legal reality has been permitted to reach this point has to be one of the clearest illustrations that western systems of government remain highly flawed despite all that they get right.