It is not clear to me that it follows, hypothetically, from the fact that an argument is silly, that no one is entitled to be interested in the topic the argument is ostensibly about.
I took “argument” to mean “dispute” in the context, and interpreted the comment as meaning “this dispute is about an unimportant topic”.
If the meaning was specifically that my argument (i.e. in support of my position) was “silly”, then of course the comment—which lacked any attempt at justification—was even more rude.
It is not clear to me that it follows, hypothetically, from the fact that an argument is silly, that no one is entitled to be interested in the topic the argument is ostensibly about.
I took “argument” to mean “dispute” in the context, and interpreted the comment as meaning “this dispute is about an unimportant topic”.
If the meaning was specifically that my argument (i.e. in support of my position) was “silly”, then of course the comment—which lacked any attempt at justification—was even more rude.