Except... passive perception refers you to Passive Checks p.175
Not really. First you're referring to a general rule (passive checks) rather than specific rules (passive perception). Like most rules, the passive perception rule appears in multiple places in the rules, and I quoted you some of them. And Crawford does in the interview as well - rules he wrote I might add. The specific for passive perception wins out over the general for passive checks, per the rules.
So while there are multiple uses for Passive Perception and Passive Checks, the ones I named are some of those uses and are not contradicted by the section you mention. For example, "Passive Perception. When you hide, there’s a chance someone will notice you
even if they aren't searching." is a rule not contradicted by the section you mentioned. It's very clearly a specific rule. It very clearly is saying your passive perception is always on to spot a hidden creature, even if you're not actively searching for hidden creatures.
Crawford's suggestion that PP is the "minimum" result is not supported by the rules.
It is in the manner I described, which is following the logical ramifications of the rules I mentioned. I understand you feel they are not supported by the other more general rule you mentioned, but that other rule doesn't claim to be exhaustive, doesn't beat specific rules, and doesn't contradict other uses for passive perception, so the places in the rules that mention passive perception being "always on" and noticing hidden things continue to apply. Which means it's supported by the rules.
Now if you are saying you prefer to not play with them that way, I am fine with that. I have not been playing with those rules either, until now. Some others have apparently. But, there is absolutely support in the rules for that use of passive perception. I quoted them. They're not out of context or contradicted elsewhere. I plan to give them a try and see how they work, but if I don't like them I will just go back to the way I was using them before which I'm comfortable calling a house rule.