Sections 1(F) and 1(L) seem like the only ways out/around of this. (IANAL; the bolding emphasis was done by me.)

F. Small Claims. You or Roku may pursue any Claim, except IP Claims, in a small-claims court instead of through arbitration if (i) the Claim meets the jurisdictional requirements of the small claims court and (ii) the small claims court does not permit class or similar representative actions or relief.

L. 30-Day Right to Opt Out. You have the right to opt out of arbitration by sending written notice of your decision to opt out to the following address by mail: General Counsel, Roku Inc., 1701 Junction Court, Suite 100, San Jose, CA 95112 within 30 days of you first becoming subject to these Dispute Resolution Terms. Such notice must include the name of each person opting out and contact information for each such person, the specific product models, software, or services used that are at issue, the email address that you used to set up your Roku account (if you have one), and, if applicable, a copy of your purchase receipt. For clarity, opt-out notices submitted via any method other than mail (including email) will not be effective. If you send timely written notice containing the required information in accordance with this Section 1(L), then neither party will be required to arbitrate the Claims between them.

Any lawyers out there who can speak towards the three bolded parts?