Well, I think since he's recorded himself at least twice a week for 7 years now, the fact that nothing similar to this has unearthed is probably a good enough sign that this was just an attempt to make off-color jokes that didn't land. Whatever the reason for him pulling the video I guess becomes irrelevant, coz what matters is how his words affect you, like actually affect you to your core. If you're offended because you feel you should be offended, then you're wasting your time being upset. If you are actually upset personally by what he said, then that's another thing and I'll respect it.
My issue is with people who've decided to institutionalize "taking offense" because you think you're being a white knight to the world. You're actually not. What you're doing is distracting from getting to the heart of hearts of why those specific words were said, what the intent was, who those words were meant for, etc. and you're just putting the "culprit" on defense. Because the subtext matters, especially if you're deciding whether or not you should be offended at something. And ESPECIALLY when it comes to comedy (or in Tyler's case, the attempt of it), because there are nuances there that are unexplainable to those who take offense, because comedy is all about context and subtext.
I'm an Arab who faced a great deal of discrimination (and physical abuse) post-9/11 in the States, and my skin is thicker because of it, but at least it helped me decipher between discrimination that's rooted in something real and something that's actually not hurtful at all. Do I think Tyler Oakley seems like he'd discriminate against me because I'm not white, or do I think he has a deeply-rooted problem with me and my people? No. I think he's a young gay kid who films himself talking and thought it would be sassy and irreverent to talk about forced diversity for the sake of it. No part of that video threw up a red flag to me. But I mean, apologies clear the air for most so I understand that.