M1 ultra dead with dead power circuit

Consumer products, their warranties, and their extended warranties work in a predictable way.

Warrant-able implies, but does not guarantee, High Quality:

Consumer product makers build high quality products. You can tell because the manufacturer is willing to stand by their products and repair or replace them (but only for defects in materials or workmanship) at manufacturers expense for a stated warranty period.

For Apple Macs in most countries, that period is one year. That is the total responsibility Apple or any manufacturer has to you under law. Assumptions about additional responsibility of Apple or any other consumer product-maker's products working longer than the warranty period are not accurate. The amount you paid for the product has no bearing on this. The rules are the same for a car costing US$20,000 or more.

Complex Electro-mechanical devices fail at random, arbitrary, and capricious times.

The most frequent reason for most failures is 'just because'.

Your specific failure is most likely caused by an advanced scientific principle called ...

... 'bad luck'.

--------

If you want a really substantial lesson how this this works (or more precisely how this stops working) own an older used automobile.

If you made the decision to NOT pay for the AppleCare extended warranty, you made a wager (bet) that is would be better for you to not pay for AppleCare, but to bear the cost of repairs (IF any were needed)  during the extended warranty period yourself. 

You lost that bet.

+1

If you decided to NOT purchase AppleCare then you agreed that any repair costs after the warranty period were your responsibility, so no you don't really have any recourse. That being said, there are some countries that have consumer rights that may cover a repair. Finding out that information though is YOUR responsibility.

Moving forward as food for thought, AppleCare is reasonably priced and IMHO well worth it as 1 repair will more than cover the cost of repair.

[in my opinion] you are wasting your valuable time and energy pursuing a case that has no merit under law and is extremely unlikely to yield you any benefit whatsoever.

However, you have the ability to turn the tables next time. 

Next time you buy a Mac, buy AppleCare PLUS at the same time. Then for the first three years, renewable, if the screen or any other single component fails for any reason you pay only the US$100 technician time, and Apple has to eat the cost of the part. A catastrophic failure like "fell down the stairs" costs only US$250 co-pay instead of the about $1000 or more retail repair cost.

But you have to sign up within 60 days of purchase, and Apple reserves the right to inspect your Mac if not bought at time of purchase. If you could buy AppleCare PLUS  any time, only users with failures would buy it, and that would ruin the 'insurance effect'.