To do this, the altcoiner has other metrics, such as tokenomics, unlocks, or a price chart.
And so do the predators above them. With the exception they have insider info as well and can pull the strings according to their payoff, which in a zero-sum game like most altcoins, this manipulation is not beneficial for the collective welfare.
By the way, altcoins are much more friendly to small deposits than bitcoin.
Not sure what "friendly deposit" means here. It can benefit small investors just as it can make their holdings worth zero.
In short-term trading, bitcoin's inability to disappear is of little value.
It appears to me valuable when I examine cryptos like Terra Luna, BitConnect, FTT, OneCoin and probably many others that went zero overnight.