again, when you say "market" you're confining your definition perspective to that of Bitcoiners only. other ppl/entities with other agendas will look at this totally differently.
other ppl/entities have been trying to disrupt Bitcoin's market leading position for quite some time now. so far they have failed quite spectacularly. how is sidechains helping them again?
(please don't say merged mining)
mainly by breaking the inextricable linkage btwn the BTC currency unit and its blockchain, the MC. it allows all these games we've been discussing for the last few dozens of pages to be played.