How to make Android Sync encrypt contact data when syncing?

Question

Android

Android Sync, when synchronizing with Google, sends all data about contacts and calendar in the clear in the usual http post.
Anyone who has access to a data channel can easily find out a lot about the owner of the device. In light of the large spread of open wifi, and indeed from a security point of view, this is very strange.
How to force Sync to use https?

Answer 1

as a ready-made solution, I see so far only opening a vpn channel with encryption

Answer 2

as an intermediate solution - give Google account to activesync, but there is no market there.