Re: Origin Crashing on Startup
@EHalden Honestly, I'm not sure why Origin wouldn't properly download and install on your system. Its recent issues were with Yosemite, not El Capitan (and Mojave, but that's another story). You have enough free storage on your computer, although I suppose it's possible that you had much less before uninstalling TS4. Still, you should be able to install Origin now, especially on a new user account. (By the way, macbook airs don't have dedicated graphics cards, so you're not missing anything there.)
Hopefully someone with more knowledge about how Origin works on macs will have better advice for you, but in the meantime, you can try the other steps outlined in this troubleshooting thread: