Is there a way to create a diamond/netherite farm in Minecraft?

In Minecraft there are iron farms, gold farms, food farms, bone meal farms, Xp farms, wood farms, tnt farms, (sand and gunpowder), wool farms, yeah you get it pretty much everything in Minecraft can be farmed except for diamond and netherite at least I don’t know any way to farm those valuable materials . I know you can’t just make something die and make it drop that so does any of you know a duplication glitch or something that lets you farm diamond and netherite? Or is it just impossible?

Nope, there are no diamond or netherite farms, because they're both "non-renewable" items. As for duplication glitches, I personally hate them.

there is not, that's why they are so valuable

just casually clear a 1 million by 1 million area using a tnt cannon in the nether

That's one way I guess......

Technically yes for diamond. You can create a village breeder, and a raid farm, and together you can theoretically get infinite diamond armor and tools if you utilize armorer, toolsmith, and weaponsmith. 

For netherite, the closest it gets to being a farm is a creeper farm to create a crap load of tnt, and then make tunnels at y=14, and placing tnt down the entire tunnel about 2 or 3 blocks apart, and lighting one side. 

Oh, true.

Idk why but in bedrock creeper farms are broken and even if I go 100 blocks to the sky to increase spawn rated, I only get 1 or 2 creepers every hours

https://www.youtube.com/watch?v=zThiOMlaOOo Try using this, go to the near end of the video where they explain how to make a creeper farm

you could use tnt duper mining machines with collection systems if you’re a scicraft nerd