Of course I'm serious. I don't know anything about the video's content creator, but please, tell me how the facts are skewed when we know places like Chicago, with the strictest gun control laws have gun deaths approaching 2 per day, and in the cities with the least gun control measures have the lowest rates. Calling the creator fake news doesn't change the jist of the idiocy of gun control logic.
Let's change gears then... What measures do you feel would reduce gun crime? I'm very much open to hearing a convincing proposal that might have a chance of working. Nothing I've heard anywhere does anything to address the problem of criminals continuing to have access to firearms - even if there was a total and complete ban of all guns. I'm not a Luddite, but I'm also not keen stripping law abiding citizens of their right to self-defense.
It's obviously an important and fascinating subject, but it's not a debate that is going to be allowed on this forum - it just causes far too much controversy and always degenerates into the ad hominem swamp.
But to at least attempt to answer your question - it's more complicated than that. Historically-derived demographics play a huge role and Chicago, in particular, is a poor example. Yes - the City itself has gun laws although, contrary to conservative lore, they are not particularly strict, but the surrounding region has relatively lax gun laws, making it very easy to obtain weapons.