Monero has been around since 2014, which is an eternity in the crypto currency realm. Its use is rapidly growing in dark net markets, where BTC is being rejected because BTC is not private.
Most regulated exchanges are reluctant to list Monero and this has limited its market capitalization for the time being.
Monero is real crypto cash. BTC was supposed to be real crypto cash, but fell short of the mark.
Monero’s future is bright. I expect that it will eventually eclipse BTC, but we are still a few years away from that.