Having spent half of every year for the last decade traveling the world by bike, I can confirm what the OP says: one meets helpful people, is often invited to m

Having spent half of every year for the last decade traveling the world by bike, I can confirm what the OP says: one meets helpful people, is often invited to meals or to stay in locals’ homes, etc. And instead of "white", perhaps a better distinction for trouble-free travel is “not black”. There’s a decent amount of South Korean, Japanese, and South American cyclists doing round-the-world or Alaska–Ushuaia journeys, and they have the same positive experiences as any person Americans consider “white”.