And even if you did it properly, you're basically guaranteed to be overweight on luxury 'consumer discretionary' sectors because you have the surplus cash to do

And even if you did it properly, you're basically guaranteed to be overweight on luxury 'consumer discretionary' sectors because you have the surplus cash to do this, making the 'consumer defensive' part an inherently modest portion of your budget and therefore portfolio. And your mortgage probably makes you wildly over/under (but not correct) weight on residential real estate according to whether you consider it a payment you need to reflect in your portfolio or a part of your portfolio and therefore it's mising a justifying expenditure. And you'd presumably have no exposure to industrial real estate, defense, anything b2b, ... But it's a fun idea and I'll admit to similar irrational thinking when I was annoyed by Amex charging (and refusing to refund) me and my wife separately while I was in the middle of trying to talk to them about merging them/closing one. (Which reminds me, must do that soon before it happens again..)