I think you mixed up "philosopher" with "asshole"
On the other hand, I can pretty easily see that as the sort of perspective that folks with little to no understanding of philosophy would take... but
yeah. The ratio of swimmers to non-swimmers vis-a-vis philosophy students I've met is higher than non-philosophy students. Tearing apart everything you personally believe in to look at its systemic insides as a job description tends to make folks fond of relaxing practices
Then existentialism and all its related kin: The answer to existential angst is either
beer or chill-th'-fook-out (or suicide, which comes if they don't choose one of the two. Ehn.). Asshole philosophers tend to either get ignored or come from other disciplines first, in my experience.
Also, unfortunately, you don't get to murder people because they're assholes. Fisherman swims to shore, gets thrown in jail for 20-life. Joke's on him~ Philosophy gets the last laugh; eat social contract, ohohoho.
Anyway, re: Math; I'd have had a lot more luck learning if people would have actually taught it as what it
is, namely a language. Major problem being that fluency in mathematics is something that most ground level math teachers frankly
lack -- when people say "What is the point of this?" they're basically asking "Translate this into <Spoken Language> for me." A person with a very limited understanding of the language can't really do anything but throw their hands in the air, unfortunately.
Now, there's problems justifying a second language to people who don't plan on speaking it, but that's a different issue; the whole 'shutting off half of world' thing applies as your justification there. Pretty much
everyone (in places with compulsory education, anyway) is at least limitedly conversant in math.