UBI should not be dependent on its specific sources and specific destinations. It's universal, it's right in the name. It should be funded by a tax on the wealthy - regardless of how that wealth is obtained - and be issued to everyone.
The goal is not to "level the playing field" so that human employees can continue to labor and companies can't afford to hire robots to replace them. The goal is to make it so that if companies replace all their employees with robots those employees don't have to find some other job to continue living.