Complex sentence: It is to be noted that any perceived criticism is not of the Apple and Macintosh products but of Apple, the company itself, and Macintosh users who believe that Apple is the originator behind every advancement in the industry.
Split into simpler sentences: It is to be noted that any perceived criticism is not of the Apple and Macintosh products. If there is any criticism, it is directed at the Apple and Macintosh users who believe that Apple and Macintosh are the originators behind every advancement in the industry.