I’m not going to bother defending Chopra...
Then, what hypothesis are you defending?
A hypothesis that is consistent with all observations and which partially explains them (e.g. that consciousness is a brain function carried out by complex but completely material neurochemical interactions, thus explaining e.g. the cognitive effects of drugs and mechanical brain damage) is better than one that does not (e.g. that consciousness is something else happening somewhere else by completely unknown means), but even that is better than no hypothesis at all.