Are you suggesting that makes it okay to forget about outsiders? Because if that’s what you believe, then I challenge you to explain what makes xenophobia wrong without contradicting that sentiment that you’re relying on so heavily.

Why would your first assumption be that I'm excluding everybody that doesn't fit into the niche?

For clarity, if you want me to pass your purity test by telling you that Xenophobia makes about as much sense as stapling your genitals to a 2x4 and swinging said 2x4 at a hornet's nest, since we're ALL GOD DAMN HUMAN BEINGS THAT DESERVE RESPECT AND HELP WHEN NEEDED EVEN IF THEY ARE SHITTY.

I don’t think anyone in their right mind would use that to argue that blind black men shouldn’t require additional assistance and accomodations that most don’t.

Who's arguing that? We're talking about sharing what abilities we do have for the greater good, in this one tiny example posted- where one person has a truck, another has a need for a truck. They, as human beings, understand that helping people feels good, so they help each other in exchange for a 'peppercorn' payment of either a shared drink/a pizza/the acknowledgment of being the one that provides help the next time. (Based on the last line about the guys with the truck noticing he was strong for his size, they knew he was capable and wouldn't have asked something of him beyond his ability, because that's rude.)

the more examples you list, the more you marginalize people who either can’t do those things, or can’t find someone who’s willing to help them out in the way that they need in exchange for one of those things that they happen to also be able to do.

So you're assuming that I'm saying people that can't pay through any means don't deserve help? You REALLY think that about a stranger you know nothing about.

Have you heard of the concept of goodwill? Of helping someone out for the entirely selfish reason of 'helping people feels good and it makes me feel good'?

Do you know that there are volunteers currently digging people (people that couldn't ever repay them, some of whom are children, many of whom will become disabled as a result.) out of the rubble that was once their home at great personal risk from either falling debris or from further attacks that led to the homes being destroyed?

But please tell me how the examples that I'm providing are exclusive and how they're not non-exhaustive examples of ways that human beings help one another.