GP also derided suspension and later disc brakes as "motorcycle" gear with no place on bicycles. That means 100% of mtb's are not mtb's. They must be motorcycles as well.
Not to mention just about every single road bike above $1K has disc brakes. That means 100% of road bikes above $1K are not bicycles either.
Not to mention Trek and Specialized have multiple lines of bicycles with front or dual suspension. So Trek and Specialized are no longer bicycle manufacturers.
Trigger shifters and electronic shifting don't belong on bicycles either: any two wheeled vehicle with Di2 or ETAP are no longer bicycles by definition.