I think you are quite correct, and that you've outlined a much more likely scenario than politicians implementing a workable universal basic income.
Sales of socially harmful goods (such as alcohol, tobacco and petroleum) are already taxed punitively to restrict their use and implement harm reduction. It's easy to imagine politicians implementing similar laws to restrict the sale of robots.
I suspect that such laws would not be very successful at addressing the problem but then I can't easily think of any laws work entirely as intended. If robots are to be taxed, it is their use which should incur the penalty, not their sale.
Sales of socially harmful goods (such as alcohol, tobacco and petroleum) are already taxed punitively to restrict their use and implement harm reduction. It's easy to imagine politicians implementing similar laws to restrict the sale of robots.
I suspect that such laws would not be very successful at addressing the problem but then I can't easily think of any laws work entirely as intended. If robots are to be taxed, it is their use which should incur the penalty, not their sale.