again the "botnets are coming for you brah" talk...what the fuck, atleast be creative.
also, since the litecoin network hashrate is what it is, any attack that can 51% litecoin can easily be scaled up to 51% bitcoin as well. not to mention that 51% a cryptocoin with a market cap of ~63325172 usd would surely have atleast some spillover effect into the trust-ability of bitcoin as well. Not so smart now, huh?
No, it cannot be scaled up to attack bitcoin nearly as well, because Asic hardware is making botnets unprofitable in bitcoin land. Asics are pushing them out of the market.