What figures can you point to on mg/L of fluoride in (commonly consumed) green tea vs tap water?
Even aside from that, it’s a specious argument: people who want to avoid fluoride can just avoid green tea; it’s much harder to avoid it in tap water.
As for “delusional panic”: it matters a lot for iodine absorption and thyroid function for some people, which is a both widespread and overlooked/diminished, at great harm and cost to those who are affected and unable to get help.
For what it’s worth I’m not advocating for removal of fluoride from tap water, but there does need to be more recognition of the harms to those affected and serious efforts made to develop treatment approaches for those with iodine deficiencies and thyroid dysfunction, as it really is a catastrophic problem for a lot of people.