UNESCO really does provide an "Auschwitz in Minecraft" custom world, which includes working gas chambers and incinerators for some creepy reason, the character is not lying
Image transcriptions
[gaming on computer]
Being a leftist shouldn't prevent you from enjoying doing "problematic" things in video games: it's all an outlet. If you want to be an ultra capitalist in Economy Simulator, go for it. If you want to be a big bad imperialism in Civilization Emulator, go for it. If you want to do bad shit in Wrong Actions The Game, just do it it's fine.
[a magnifying glass zooms onto the character]
Zooming into the activities of the gamer depicted above
[character]
Wait wait wait what are you doing you're not allowed to do that this is an illegal zoom why are you looking into my perfectly normal Minecraft save I don't like where this is going
[character trying frantically to hide a Minecraft save called AuschwitzBirkenau]
bruh
Don't do this come on it's a low blow
Yo dude no stop looking what the fuck
[character standing next to Auschwitz's entrance in Minecraft]
Don't get any wrong ideas this is just a regular train station I was building in Minecraft for fun (world name is unrelated)
[character trying to hide various screenshots including gas chambers]
Yo don't judge me we all build things for fun
Chill out wtf
I got this save from UNESCO