Bass music is truly changing the game right now, and I'd hate for you all to miss it. You know how Aphex Twin was once considered underground, and now his influence can be seen on nearly every electronic producer known to man? This scene, in my opinion, can have that same effect.
All these producers are taking things like funk, psychadelia, dubstep, glitch, etc. and mashing it into this crazy danceable shit. It's breaking music norms, and I think the scene is a sleeping giant. Ganja White Night and Space Jesus kind of broke into the mainstream scene a few years ago, but I think there's more to come.
I really hate to be that guy, but the songs you posted aren't really what I'm talking about. Bass music is more in line with things like https://www.youtube.com/watch?v=l-Mqdrbjv9g https://www.youtube.com/watch?v=2Hicb4JO8Ns&list=PLp-RFLHdNDIRz2p5OWk_QocUlIOVc8_8Z https://www.youtube.com/watch?v=Phdqoy4ubCo https://www.youtube.com/watch?v=8XT3VrJwO-Y https://www.youtube.com/watch?v=WpZWARExhwo
The defining characteristics of a "bass music" artist are usually: "wonky" bass, non-adherence to higher frequencies (much like house has a tendency to do), and the fans doing a ton of Ketamine at their sets. Everything else is up in the air. Things like Psychill, glitch, certain kinds of Dubstep, certain kinds of trap, and downtempo are all considered bass music. Things like DnB and Brostep artists get booked along with them frequently though (see Bassnectar and Excision)