This will seem like a lot of irrelevant information but it will make sense.
I'm relatively new to tabletop RPGs, but not RPGs in general. A little while ago, I became interested in playing with a group that my older brother participated in that uses the Shard RPG. I Skype-in to play. I learned fast and the character I wanted to play was what they were missing from their party, so they were more than happy to let me join.
In Shard, you play anthropomorphic characters. This group is really – and I mean really – into the furry culture. They have integrated it into the game. I don't care that they are proud furries. Like what you like, you know?
One of the issues is that they talk over me and interrupt me when I talk. So much that I don't see the point in trying to speak up any more. I now get in roughly 2-5 role-play minutes to their 20-45 minutes each. I'm not exaggerating because I record the sessions – they wanted me to write a book for them. It's not truly role-play, either. Instead, it is to get information to get to the next fight. As a result, no one in our party knows each other beyond familiar acquaintances.
The main thing is that they are extremely condescending. They consistently assume that I am the dumbest person in the group and routinely make fun of me. They do not let me defend myself properly, due to the above-mentioned interruptions. My brother lets them. I'm not expecting him to do my fighting but I didn't expect him to just sit back and watch.
The GM is a mess. He makes excuses like, "because I said so" and "that's the way my world works." For instance, I gave him real-world information about speed and he used it for an NPC. Then later, after the session was finished, I mentioned how a certain animal has this speed (because I thought it was cool and wanted to share) and he said, "That's not how mechanics work," in this derisive tone. Everyone laughed. I tried to explain I was just sharing something cool but since I was Skyping in, my brother hung-up right as I was mid sentence.
They, particularly the GM, have done this before. Where I provide information no else seems to know and they use it, but don't let me use that same information. The GM uses it for his NPCs and the other members' characters, but not me.
I have left before and I kind of dread being around them. On the other hand, I don't really have friends (woe is me. Maybe I'm the problem?) and I like the creative aspect of it.
TL;DR
I am playing in a disrespectful group. One of the players is my brother. They talk over me, interrupt me, condescend, and at times are openly aggressive. They spend more time arguing with each other than playing. They have aggressively told me to shut-up when I got confused and asked a question. They make rape jokes even though they know I've been raped, repeatedly. The DM is a mess and makes endless excuses for not planning his story or NPCs well.
I have tried talking it out with them to no avail. It is a five person monologue to rationalize their behavior. Should I just stop making my weekends frustrating and leave the group?
Best Answer
Yes. You should leave.
These people are not respectful, and are not worth your time. Tell your brother you're not interested, and stop joining the call — he's the only person you have actual contact with, and given the behaviour of the rest of the group you're best cutting ties with them completely. (Who would want friends like that?)
You could expend effort working with them to overcome their talking over you, their negligence of you getting value from the game, and their aggressive and disrespectful behaviour toward you and making you feel uncomfortable — but that's a lot of effort, not likely to succeed with this group, and not really worth it when there's a world of gaming groups out there full of people who are quite ready to treat you and others respectfully like anyone ought to. (The fact they're making rape jokes in front of a rape victim is appalling, and one of several strong signs they're probably not interested in engaging with you constructively on resolving any of this. Indeed, a lot of what you've described reads to me as abuse.)
We have some guidance available on finding other groups that you might find useful, kindly gathered by a resident moderator:
Bad match with a gaming group, how to leave? provides general advice for politely leaving groups, but in this circumstance, you don't need to use it. The group does not need, and won't be receptive to, an exit conversation. (Your brother may be different in this regard, but you'll need to judge that for yourself.) Other people in the future may be receptive.
You mentioned these people were in the furry fandom — I'll advise based on personal experience that this behaviour is completely non-representative of that fandom, and exceptionally awful and heinous bullying by any standard, including theirs. Individuals in the furry subculture may be somewhat more inclined to poorer social mores than many groups, but the subculture is largely made up of harmless, well-intentioned, friendly individuals.
Roleplaying games should always be fun. If you're not having fun, talk and work with your group to resolve the source of un-fun, or leave and find another one. You found this one, you can find another.
(NB: In a previous version of this answer I'd unwittingly given some advice that appeared to suggest this behaviour was normal for people in the furry fandom. It isn't. At all. It's awful, and entirely outside any behavioural standard of the subculture.)