Your counterargument is invalid. The most advanced human intelligence invented (or discovered) concepts like multiplication, pi, etc., and created tools to work around the ways in which these concepts aren't well handled by their biological substrate. When machine intelligences start inventing biological tools to overcome the limits of their silicon existence, you'll have a point.
Isn't the comment you are responding to an example of: "When machine intelligences start inventing biological tools to overcome the limits of their silicon existence, you'll have a point"?
