@th3j35t3r Some very good advice I got a long time ago I now share with you:

Don't. Feed. The. Trolls.

I know it's in your nature to be kind and explain. It's in mine as well. But, such people prey on that to frustrate us and waste our time and energy. They are not asking questions in good-faith. They are deliberately trying to wear us down. It is a tactic from the KGB playbook and it is quite effective.

It is also THE oldest trick in THE book to question truth when there was no doubt before.