Yeah it's something in going to keep playing with internally. Free markets are quite different to Riba. It is a broken system & the sooner it collapses, the sooner we return to hard money. I have no problem in logically justifying it (don't hate the player, hate the game).
I think ultimately my guide will be how it feels to me. I'll avoid it if it feels like fear or greed is motivating my action. It sounds like woo woo, but it's served me well in decision making so far.
I'm yet to see a product that feels right, but I'm still open to it. I think we'll see some compelling products come out this coming cycle. My ideal product would be an interest only mortgage that uses bitcoin (in shared custody) as deposit collateral. There should be no reason to liquidate in this scenario while the mortgage is being serviced.
I want a few of hundred acres of farmland/pasture.