Crypto is really inaccessible

I'm a US citizen living in Mexico. I've been trying to buy Bitcoin etc for years. I can never do it with my Mexican bank account with my residency card or a US passport. I got a ledger and moonpay and coinify don't work with either of my cards. Seriously. I've been trying to get involved with this forever. What the fuck. How is the currency of the future gonna be so hard to access?

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edit: thanks for pointing me in the right direction everybody. I'll give it a whirl in these other ways.