It just moves around.
In the United States the Supreme Court ruled in 2005 that it was unconstitutional to allow wine to be shipped directly to the consumer within a state, but not to allow an out-of-state winery to ship into that state. So between 2005 and 2015, the past 10 years, with the exception of eight or nine states, everybody has put in place rules—they're slightly different—to allow for winery-to-consumer delivery, and it has been extremely successful.
Small producers in the U.S., which represent probably less than 10% of production, represent about 63% of the volume sold through direct-to-consumer delivery. It's their primary channel.