Because they're the one who made the claim without evidence or argument.
> It's up to you to convince him (or others) that it is bad
Yes, that's what I did.
> the reasoning "according to MY ethics it is bad" is not a good argument.
That wasn't my argument.
Because they're the one who made the claim without evidence or argument.
> It's up to you to convince him (or others) that it is bad
Yes, that's what I did.
> the reasoning "according to MY ethics it is bad" is not a good argument.
That wasn't my argument.