It was was painful to watch that strmwind fallacy endorsement in ways that hurt my soul. "My dm & fellow players have no problem with how I've built [this character]". Earlier in the video she herself described it as a warlock without eldritch blast and "crappy spells". Humans are generally cooperative & agreeable to the point that
agreeableness even has a scale in psychology. As the video goes on she talks about a low charisma on said warlock & other deliberate choices that force the rest of the party to carry her deliberately craptimized character as Ogre Mage described
earlier. It's not even till the very end after talking up how great this spotlight hog dead weight craptimized character will be for the story everyone will be forced into enabling so they can stop carrying it even slightly & get it over with so they can maybe try doing some of the things they wanted to do that didn't involve carrying a craptimized party member.
Maybe she went around to her dm/fellow players and asked them before starting with this character & made it clear just how unbelievably bad this character would be on a mechanical level & just how much plot/story time it would need before it "makes sense" to do things like not have poor charisma on a warlock. In my experience however it's the other way around & "I'm a roleplayer not rollplayer roleplaying my character" type excuses get used to bludgeon the slightest whiff of frustration from others