If you use almost any goods or services almost anywhere in the world, you at least indirectly benefit from or use the global banking system, as it is the de facto (and probably quite often de jure) system for payments. There are no alternatives that are as good as it, on pretty much any axis. This includes all crypto.
I'm not trying to unfairly critique your personal choices, but that's just the reality. Just like how you basically can't possibly survive in a city without participating somehow in the global capitalist market economy, you can't claim to personally not partake in the global banking system. It's everywhere, and you might personally take issue with it and of course can critique it, but you can't claim to not partake or even partly benefit.
I'm not trying to unfairly critique your personal choices, but that's just the reality. Just like how you basically can't possibly survive in a city without participating somehow in the global capitalist market economy, you can't claim to personally not partake in the global banking system. It's everywhere, and you might personally take issue with it and of course can critique it, but you can't claim to not partake or even partly benefit.