Comment by avianlyric

If someone or something can tamper with your phone, then nobody needs to collude with proxies or Apple. They can just ask your phone to send them exactly what they want, without all the homomorphic encryption dance.

The idea that Apple is going to use this feature to spy on you, completely misses the fact that they own the entire OS on your phone, and are quite capable of directly spying on you via your phone if they wanted to.