London's identification with the wilderness have made him popular among the Green movement. On the other hand, London's views about the superiority of white people and that only the strongest deserve to survive, have placed him among the ultra-right conservatives.
Fiction pays best of all and when it is of fair quality is more easily sold.
A good joke will sell quicker than a good poem, and, measured in sweat and blood, will bring better remuneration. Avoid the unhappy ending, the harsh, the brutal, the tragic, the horrible - if you care to see in print things you write. Don't write too much. Concentrate your sweat on one story, rather than dissipate it over a dozen. Jack London was born in San Francisco.