Anyway, he's substantially if not completely correct and it's not hard to find sources backing up the connection between the HST and KH-11 spy satellites if you bother to look it up. In the sibling comment to yours, I provide a link to a book about NASA, hosted on NASA's website a few years ago, that says Hubble's primary mirror was fabricated using technology developed for the military, that a 2.4 meter mirror was specifically chosen to make that reuse possible. The mirrors were almost certainly manufactured by the same people on the same tools. Read the wiki page for the KH-11 and you'll see that the apparently similarities run deeper than that. Dimensions and general structure of the satellites are also believed to be the the same. None of this is fringe.
https://en.wikipedia.org/wiki/KH-11_KENNEN
And if any of the above is too speculative or unsubstantiated for you, try this on for size: https://en.wikipedia.org/wiki/2012_National_Reconnaissance_O...
And this: https://en.wikipedia.org/wiki/MMT_Observatory#Multiple_Mirro...
Now take this as a fact and next time someone makes an accusation use it to show a history.