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I’m not sure which editor you refer to as “the OSM editor”, but surely id has it, JOSM can specify it, and StreetComplete has numerous quests that are disabled by default for various reasons but can be enabled (with SCEE having even more).
As for routing priority, that depends on the routing profile used by the router; there are dozens of routing profiles among several routing providers, many of which probably don’t use smoothness but could. OsmAnd can — it targets some smoothness values like unpaved.
This is an illogical misinterpretation. Consider a Venn diagram of Palestinians and US Citizens. The intersection is obviously not the empty set. That initial sentence you quoted is describing the set of Palestinians minus said intersection. You even betray your misinterpretation by quoting “Palestinian people who were US citizens” between accusations of racism.
Much of the rest of your comment similarly falls apart from this illogical misinterpretation.