No this is not correct. Here is one of many research papers which disprove this…
http://iai.asm.org/content/31/1/78.short
This paper indicates that a 0.5% fructose solution resulted in a pH drop (namely acid formation). This is the same process which leads to teeth enamel damage.
It is also worth noting that David Gillespie is a corporate lawyer which his own opinions on sugar. I would prefer to rely on research findings from reputable organisations.
