Why won’t my bank let me buy from a trusted crypto exchange?

I wonder if you’d consider helping those of us Australians trying to safely transfer funds into CoinSpot – one of the biggest Australian crypto exchanges.
While Westpac allows transactions to CoinSpot, Macquarie has banned them. Staff insist they’re “protecting customers” by preventing us from using our own funds to invest in so-called “unsafe” assets like crypto. I’ve been told there’s no one at the bank I can speak to about reversing this decision. “Debanking” customers in this way is hardly an example of great service. It forces us to leave cash on exchanges and requires older Australians like me to open and juggle multiple bank accounts. Frankly, it’s a paternalistic and heavy-handed form of control. Can you be a voice for us?
A Macquarie Bank spokesperson says “Unfortunately, cryptocurrency exchanges are frequently used by scammers to obtain funds from their victims and so present a high scam and fraud risk. To help protect our customers from the risk of scams, we block payments to BSBs that we assess as being high-risk, predominantly where they house accounts belonging to cryptocurrency exchanges.”
“This decision aligns with our commitment to help ensure the security of customer payments and protect against fraud and scams.” I guess your only option is to use Westpac.