IANAL, but EULAs are mostly enforceable in the US as they're contracts. BUT, not every provision is a slam dunk win for the company. As I understand it, much law is decided on what a "reasonable person" would act, think or find fair at the moment action was taken, such as clicking "I Agree". Would such a person expect the EULA to provide for spying on their voice and snapshotting their private viewing? Dunno, but I'd love to see a test case move forward.
Someone should sue on behalf of a minor, who cannot agree to a contract, or another third-party in the home who did not agree. Bet there's case law on this sort of thing in other contexts.