That's because besides the big three, and with most crypto transactions running on Bitcoin, it is true. Ethereum shares most of the problems for now while addi

That's because besides the big three, and with most crypto transactions running on Bitcoin, it is true. Ethereum shares most of the problems for now while adding complexity of designing bug free contracts. (If that fails, someone will steal your gas.) Monero is the third and both smaller, maybe more private, more expensive to mine. And value of all three are rather strongly correlated.