OpenVPN iOS 11 How to prevent?

Question

iOS

OpenVPN iOS 11 This means the following
VPN is simply turned off and then traffic goes without a secure channel
In OpenVPN itself, an option is built-in, like protection against IP clearance, it is enabled. Protects against falling mobile communications (for example, when you go down the subway). However, when the connection from the VPN server disappears, this does not help
Question. How to make sure that any traffic on the phone goes exclusively through the VPN? If there is no VPN, there is no traffic.

Answer 1

Using a mobile device and talking about anonymity is stupid.
It doesn't matter if the connection is encrypted or not.