Halloween? - Paganism and women dressing too skimpily. Also whining about """cultural appropriation""" when someone wears a costume referencing a foreign nation or certain ethnicity.
Thanksgiving? - Celebrating the obsolete concept of extended family and endorsing gluttony. Also """genocide""" on Indians.
Added some stuff.
I have yet to see a single holiday that ANY of the Dobson-types like, much less participate in.
Black History Month and Pride Month if that counts. Not like they celebrate them, they'll get high on huffing their own farts once they changed their social media avatars by adding a BLM or rainbow flag.
Not surprising, I've found that people who've failed at life are very VERY adverse to letting ANYONE else be happy.
My guess is that it makes them realize their shortcomings.
I mean, imagine Dobfamily celebrating Christmas. It's the end of the year, everyone talks about what they did that year, what people they met, what projects they successfully concluded, what personal achievements or goals they fulfilled, where they went and what they did there...
Like Dobdad will tell stuff about his job and personal life, Dobmom will talk of quaint Dobmom things, Dobbro will talk about his career... and then there's Dobson. Every. Damn. Year. He'll only have the same old stories: He didn't go anyhwere, he didn't meet anyone, he didn't conclude a project, he didn't fulfill a personal achievement or goal, he went nowhere and did nothing.
He just sat in his flat (paid for by his parents) playing video games (paid for by his parents) eating junkfood (paid for by his parents)... and every now and then, he drew a picture for his """art""" """career""". Think about how soul-crushing that must be: You're a cartoonist for 20 years with an MCAD degree, you never were gainfully employed, you never got published, you never managed to live off your work and the best thing you can tell about your achievements in the art sector sounds something like this: "So I made a carricature of UGH...DRUMPF! as a literal jackbooted Nazi... and it got like shared by a thousand people on Instagram!"
I can't help but imagine his dad looking at him sideways over his newspaper, going "So... how much money did you earn that way?", his mom going "oh come on dear, you know that's not important." and Dobdad then flipping his newspaper back up mumbling something about MCAD tuition fees.
Seriously, Christmas (or whatever the biggest annual family get-togetehr is) is just an annual milestone of stagnation to Dobson and people like him. They realize how much they are stuck in their shitty situation and people talking happily about what they are doing with their lives is seens as an attack by the underachievers.