There's enough anime (mostly from the 80s and 90s) that have real horrible English dubs without making videos of people pretending to do a bad English dub. If you ever want to see comedic gold from a bad anime dub, check out the vaults of early ADV Films (their dubs did get much better, but wow their early work was bad); Manga Entertainment; and Odex (the English dubbing studio based in Singapore).
Yes, there was actually a time when Geneon (one of the best dubbing companies of its time through its relationship with acclaimed dubbing studio New Generation Pictures) was so desperate to cut costs before they went under that they started outsourcing English voice acting to Singapore. And yes, the results were terrible.