Two points Rick.  First, you completely ignored the peer-reviewed research which I provided with this link.  
, https://www.facebook.com/notes/making-sense-of-fluoride/peer-reviewed-research-on-fluoride/549094861795529/
So, when you say, " your intake of fluoride is limited by water intake and thus an inconsequential," you are ignoring the reality of the science.

Second, when you say, ", the "optimal dose" was nearly twice what PA was adding before 2015." you are incorrect.

In 2011, the USDPH recommended narrowing the target of fluoride concentration from 0.7-1.2 parts per million, to the lower end of that target, 0.7.  And yes, that narrowing was established in 2015.  However, 0.7 was always a part of that optimal target.  Either you are purposely being deceptive, or you are repeating something you have heard from someone who was being purposely deceptive.