A blockchain is an engine that powers an application, a platform, or an ecosystem of some kind. If more blockchains offered a practical use like Steem does, you'd see more diversity in blockchain.

Investing in crypto as speculation is gambling. The fact that more men are gambling is not a good thing, you don't want more women gambling. that's not something to be proud of. less than 10% of crypto traders make money, the rest lose money.