You've got the right idea. I ended up implementing my own proxy for Netflix as you describe. I use dnsmasq to hijack the relevant DNS requests and then I wrote

You've got the right idea. I ended up implementing my own proxy for Netflix as you describe. I use dnsmasq to hijack the relevant DNS requests and then I wrote my own https proxy to proxy the API connections. The actual streams come from CDNs of which are not concerned about your country of origin.