"explain how some tumors become resistant to chemo"
First prove that it is the tumor's resistance, rather than the destruction of the body's immune system due to the massive toxic attack that chemo obviously is.
Come on back in 20 or 30 years to let us know, ok?
Explain to me how the immune system is destroyed in the first place, according to you.
I first asked for a mechanism. You came up with a possible method. Now back it up with details and reproducible data. When you do, then I will back up my mechanism with reproducible data.
To me tactics such as yours show that you have no knowledge of even basic biological processes.
The process of tumor resistance has been known for years.
My father died of lung cancer in 1990, it was well known then. I was discussing the drugs they used and the big possibility of resistance with his doctor then.I explained to him how the drugs worked and he said it helped him not to be scared of the chemo.