No it's not it's arrogant, and economical harmful.
Why do you think the term "legal tender" refers to government issued turds which you are forced to accept?
Most people see no ethical issue in choosing dealers who accept the credit card I prefer over one who doesn't. Why Bitcoin? He didn't say: I only accept you as a provider if you do *not* accept fiat. Then you'd have a point.
Good job at nit-picking my argument.