You don’t have any facts. You just have an opinion, same as everyone else.
What you also don’t have is the adult-like ability to discuss an issue without resorting to petty insults.
• Diana did not meet Hewitt until after Harry was born, a fact you can research easily
• Diana was stripped of her titles at the divorce, a fact you can research easily
• Charles cut back his own brothers, nieces and nephews' allowances and reduced their participation in Court activities, facts you can research easily
• The hereditary monarchy operates on bloodlines; the bastard child of a divorced consort is not eligible to take the throne, facts you can research easily.
From these FACTS, I stated these logical conclusions based on facts:
• that the royals would already have made sure of Harry's parentage because of Harry's place in the line of succession;
• that Charles would not hesitate to reduce the public role of an illegitimate heir since he reduced the role of other legitmate heirs to the throne, and
• that if the royal family did not obtain DNA proof, someone else would have done it by stealth.
May I add that when the rumors were circulating, it would have been the duty of the Prime Minister to discuss the matter with the Queen and make sure she was certain of the line of succession. That's just common sense.