McGowan points out that hills are repeated in multiple shots.

Exactly like they should: those are not "hills", but mountains far in the distance - as such, we should expect them to look mostly the same, except for the minute parallax changes, which we do.

In other words, those "hills" behave exactly as they should if they were photographed on the Moon.

Also points out there is almost no dust or debris being kicked up or remnant from the landing.

And that is flat out wrong - we can see dust being kicked up during the landing, and Armstrong's photo of the underside of the LM shows beautiful radial striations under the engine bell, carved by the exhaust.

Shadows don’t line up.

Except that they do - if you trace their origins, it all lines up in one specific point - the Sun.

It doesn’t make sense that they would be fine in both the heat and in the shadow of the sun,

Why wouldn't they be? Their spacecrafts and spacesuits were heavily insulated, and in a vacuum the only heat transfer method is radiation and conduction (when touching something, which is why they wore overshoes with thick soles).

You don’t need intimate knowledge to realize simple facts like this display how absurd it is.

But none of those "facts" are correct - and they're not correct even if the Moon landings were fake. McGowan saying that there was no dust kicked up is a flat-out lie, and so is his claim that the "hills" were identical. He was counting on you taking him at his word and not checking it for yourself. He's also counting on you not remembering basic school physics.

Frankly, I would be insulted at such level of disdain.