A wall? No, a cage over America

While Trump is throwing a tantrum over financing his wall between the USA and Mexico, he seems to forget that if there's ever such a formidable wall, illegal immigrant would circumvent it by entering the United States by sea to either the east or west coasts, or by flying over the wall and going to a State of their choice, or to Canada and then entering from the North.

What's therefore needed is a cage, lined with chicken-wire, that would be 50,000 feet high (so domestic flights could operate below), would extend to the limit of the Nation's territorial waters to finally prevent the influx of illegals.

Sure, it would cost more than the wall (something like $100 trillion in my estimate), but be quite worth it. You always get what you pay for!