No one except an idiot would claim that you can see the remnants of the Apollo missions with a backyard or even the most powerful Earth based telescope.

The Moon is 380,000km from the Earth (about 10 times the length of the Equator). The apparent diameter that the Moon looks from the Earth is about the same as the diameter of Australia would appear if you were looking at it from the Moon, while the Earth would appear four times larger than the Moon appears from Earth.

To claim that you could see the remnants of the Apollo missions such as the descent landers would be like saying if you were on the Moon looking at Earth with a backyard telescope you could see objects the size of small cars in Australia.

As I said, you'd have to be extremely stupid to claim that you can see Apollo mission remnants from the Earth. However, remnants of the Apollo missions have been photographed numerous times over the last fifty years by orbiting lunar probes from multiple nations including the Russians and Chinese who would love to disprove the Moon landing theories espoused by crackpots but nevertheless have provided photographic evidence that they took place.