So you oblige yourself to an enormous long-term loan at high-interest, burn PMI on it because you have too little equity, secured against an overpriced-for-quality home whose value may already be at peak or plataeu, fixing yourself to one location, while all signs warn that you may be laid off at any time and facing a long period of unemployment.

I knew a lot of people who did almost exactly that ~18 years ago. It didn't go well for them.

And then it turned out that staying flexible as a renter and setting aside cash set me up to buy after a correction instead of before. That part went very well for me.

Be careful with the assumption coded into your "forecast spreadsheet"

I left Silicon Valley 5 years ago. Are people getting $1M+ loans with zero down these days?

You don't need to save for a downpayment for 10 years? Or are you saying it won't take 10 years to save up for a downpayment?