I don't call it boycott at all.  Investors were burned badly after 2017 rally collapsed into Depression.  Once better twice shy.  It is far longer for the investors to lick their wounds and overcome their phobia of altcoins.  But I do believe, in the end, the main altcoins will dominate and Bitcoin will lose the dominance.  Everyday we kept seeing more and more innovative coins coming in.  Those coins are far better suited for block chains defi etc.