Society won't collapse due to automated jobs in various categories any more than it collapsed due to mechanized agriculture. People and markets will (sometimes painfully) adapt. I don't doubt your sincerity, but I don't see how your vision of "a life without work" can be realized from a practical standpoint. I don't think your buyout and export idea would have the slightest chance of being approved either by US taxpayers or the countries we would be sending our surplus population to. Nor do I think an independent California would be the haven you might think it would. They would have water and power issues, the possible loss of readily accessible US markets and the need to pay for a defense establishment, central banking system, etc. There probably wouldn't be all that much left to finance a large influx of benefit seekers.
Personally, I think the most likely route to a life without work is to earn oneself financial independence through saving and investing coupled with living simply.