I'm going to come this from the other (probably less popular!) direction.
I see no evidence of racial bias in your description. Of course I wasn't there and can't judge it, but to me it seems like you describe a straightforward disagreement between classmates. I would be very careful about raising the issue of race unless you have compelling evidence.
It is true that the group you describe is dysfunctional. For sure the others shouldn't have waited until the last minute, or should have made an appointment for everyone to work together on the last day. Still, I wonder if you are partly to blame for this. Again, I wasn't there, but:
- Looking at this from the light most favorable to you, it seems like you did a good job on your part, submitted it ahead of schedule, and were planning to address the remaining edits later that night.
- Looking at it from the light most favorable to them, it seems like you just dumped a bunch of stuff into a word doc, didn't help them edit/integrate/merge/revise/fact-check, didn't respond to requests for changes for an entire day (on the day before it was due!), then became hostile when they asked about it. If there was any misunderstanding about what "your piece" of the project was, so much the worse.
Regardless of whether the second viewpoint is accurate, learning to foresee and avoid such blow-ups before they happen is a valuable skill. (Of course, this is not to make excuses for racism or plagiarism, if those things actually happened).
The university will not intervene in dysfunctional groups. If you can make a serious case for racial discrimination, of course they should investigate that. But the dysfunctional group is really not a university issue; such things fall to the instructor of the course. The instructor probably views learning to navigate such problems as one of the course aims, and will view this as valuable experience for you. The insults, the use of the f-word in this manner, etc., is a very inappropriate way to resolve conflict, but since it is student-to-student, I doubt the university will get involved (unless you are in a culture / campus code-of-conduct that takes such things especially seriously).
Deleting your name from the assignment is probably the most actionable piece of this. Since you can prove that you contributed to this (assuming any of your pieces survived), and if they submitted it without your name, you could bring a plagiarism charge. I imagine the professor would just smooth it over (giving you the same grade as the rest of the group) -- this is likely to be his/her choice (depending on your university's rules).