I'm not going to downvote your comment, because I strongly believe that we're all entitled to our own opinion.
Now, according to the Merriam-Webster dictionary, xenophobia is defined as "fear and hatred of strangers or foreigners or of anything that is strange or foreign".
Nowhere does the OP display fear or hatred of any type of group, race, religion, nationality or anything else. The thread is about a CEO that is known for having a horrible track record with the privacy of the data his companies collect.
Mentioning a nationality alone is not xenophobia.
Additionally, whether you are a moderator or just a regular user, it does not justify talking to anyone in the way you do.
It is highly likely that the OP has not complied or replied precisely because of the way you chose to word your comment. If it was me, I would have probably removed the nationality from the post, and would not have replied to you, but we're all different.
A moderator moderates. To moderate is to lessen the intensity or extremeness of.
While I respect the tasks moderators do, because they take the time to maintain toxicity away as much as humanly possible, which is not an easy task, being a moderator does not give anyone the right to treat others with disrespect, regardless of the situation.
Now, I have no idea of the extent of a moderator's power in Lemmy instances, but if you kick me out, ban me, or whatever, know that I dont really mind. My reason for being here is wanting to interact with others on productive and respectful conversations, but by no means would that affect me in any significant way. I'm not challenging you, but this is one of the reasons I removed Reddit from my life. Too many moderators with low to no tolerance towards anything they thought was against their rules and acting like dictators.