It's just as easy to cleanse the body as it is to cleanse out parasites, so again you are spouting untruths. Chemically induced cancer is not hard to cure.
As to that video, the author was upset that the Beck devices only helped the HIV level in his blood from going higher, and did not bring it down to zero. But that is to be expected with people whose CD4 counts is as low as his was. The microcurrents don't kill the virus, just disable them from infecting cells and making more copies of themselves. When disabled it is the job of the immune system to remove them from the body.
Beck didn't have the whole picture which is why he boosted like he did. The lab reports of peoples HIV going back to zero were from people who still had enough immunity to accomplish that.