Or follow the directions in section 1(L), as shown in your screenshot. That section says you can opt out by sending a letter to Roku with your name, contact info, product, Roku account email address, and receipt (if applicable). If you feel so strongly about this, opting out is not hard.
Also those terms have been published since 2019 so I don't know why people are only making a stink about it now. I'd bet that the dispute resolution agreement was in the same terms you agreed to the last time they changed, or when you first set it up.
Requiring written opt out for technology that otherwise is internet connected should be considered undue burden. It should also be considered a choice the company made to reduce the number of people opting out.
The reason why people are upset is because any update in terms of use that a user doesn't agree with should be presumptively ineffective, because the user has property rights to use the thing they purchased.
This absurd pop-up reached out of the ether, disabled all of our TVs with no warning, and held the TV hostage until you clicked "Agree." "Agree" itself is falsely labeled because there is literally no other option. Even following the absurdly cumbersome opt-out process, you still have to click "agree" to use your own property. It's subtle but deeply dystopian.
People are probably making a stink because Roku is pushing out these messages to all their TVs, and people don't typically read mile-long EULAs. When's the last time you read one?