Yeah, that's because bitcoin is the rising tide that lifts all shitty ships. While your statement generally holds true, I think you meant to post it in another section and in another thread... unless you are fond of verbal abuse, that is.
No, I meant to post it in this thread, despite the customary "verbal abuse" as you say, because it demonstrates the principle that the "shitty ships" and bitcoin relationship is symbiotic as I've been pointing out for a few years now. The "shitty ships" buttress bitcoin's rise like the legs of the Eiffel tower so it can go higher. It would never have reached this level without the emergence of the altcoin market.
At a mature valuation, BTC dominance should be between 10% and 20%.