FTR, i'm not a hostile, I am genuinely interested in honest and civil discussions about the merits or deficiencies of blockchain technologies

I think its ok like POS or POW chains, each has their merits, whether its $SOL or $KAS.  I understand your allergic reaction as well to some fanatics who seem to be screaming for their cause.

Right now BTC is still the dominant focus of most POW purists, and is getting the lion's share of financial attention.   You can't ignore it, even if you hate it.

My take still, is that $KAS is just a better, more efficient version of BTC, and is getting faster every day, unlike its slow predecessor, because it CAN scale.  That pretty much means it will eclipse it for transactions in short order.

As for SC, I will leave that to some others on here who know the integration better, but as I understand it is not the same, and is not simply stapling an L2 to the main chain.