In your opinion its making a big thing out of nothing but when people refuse to even TRY to do their job properly it shows a severe lack of consideration for the rest of the people in the group; its supposed to be a team effort after all. This isn't a solo player game, when you load into DF there is other human players in there with you. Not knowing how to play your job is one thing as long as people are open to advice and actually attempt to do better I don't even care if they are doing less than average. Most players I don't even say anything to unless they are really missing something crucial.
I am super tolerant, I have used the vote kick feature probably one to two times in the last year. There is a point of tolerance that some people eventually can cross to make me give up the run and either kick the player or just leave myself.
For example people who immediately crap on people who ask other players nicely if they could do/or not do something in their toolkit to help the run go smoother I will leave because I don't wanna play with someone like that. People get so defensive its getting really ridiculous to the point where if anyone even asks a nicely worded question to someone in a group either the player it was directed at starts throwing insults or someone in the group decides to be their knight in shining armor and "shield" this player from this barrage of apparent hostility that wasn't even there in the initial question. I had a dungeon run in Vault with someone using an i110 weapon...I let them know nicely where they could purchase a better weapon for themselves after the run was over. Even something like that caused another member in the group to rage at me for just offering help to this player because they seemed new. Like I am the devil incarnate for just letting a new player know where to get upgrades. They ranted on about who cares the run is fine (even though it was awfully slow but I didn't care too much) and how I should take my elitist attitude and leave. I have plenty of other stories but this post is already long enough.
Another example is people who know something is good for their job to do but purposefully don't do it. I've seen soooooooooooooo many DRG's at 60 that don't use Heavy Thrust. Normally I will let them know nicely it helps their damage and some will start using it, they don't always keep it up but I don't care because they are trying at least. I actually had a DRG recently that said "I know what Heavy Thrust is" after I mentioned to him that it would help his DPS. This was after the first boss in a 60 dungeon and he never used it during the entire boss fight or on the trash before it. So he knows what it is so I asked him "if you know it is good why wouldn't you use it?" and apparently he just didn't feel like using it. I wouldn't have said anything at all to him if he just had the buff on even half the time or even just for bosses, but to not use it AT ALL even though he KNEW it was good? This is the mentality that just baffles the hell out of me. If you don't like using Heavy Thrust why even play DRG?
A lot of people in this game have to stop getting defensive with every little thing that is said. Take a minute to think about it when a fellow player asks you a question or gives you some advice; maybe JUST maybe they are actually just trying to help you? Not saying there aren't trolls or rude people, there are, but don't assume that unless they start full on insulting you.
Obviously OP made a mistake; calling someone a bot isn't the way to assist other players just because they might not answer right away. This is more in general with my experiences with people who really seem to try hard at playing as lazily as they can and lash out even if people offer help. It's not a solo game and if you are going to give zero consideration to the other people in your group and not even try to do decently then don't be surprised or mad if you get kicked or people ditch you because they are treating you how you are treating them; like NPC's who don't matter.
This is even coming from someone who has really low standards for others, I never expect people to do 90-100% I give them the consideration that they might be new to the game, new to the job, not as experienced, not feeling well IRL, tired, etc, but if you are really that tired or not feeling well that you can't hit one extra button to use your DPS rotation even just half correct then maybe you need to take a break. 50% of your potential is all I ask, sadly it is happening more and more that I see people who don't even hit this already low expectation and refuse to take advice or even try to do better.