Sending remittance payments in cryptocurrency does not make sense for people who are sending their hard earned dollars back to their home country to support their impoverished families. The risk exposure to exchange rate fluctuations, and risk of loss of funds in transit (due to fraud, hacking, losing a crypto wallet, sending money to the wrong wallet, etc), the fees associated with cryptocurrency transfers, and the extremely slow transfer times, all makes cryptocurrency a totally inappropriate product for the demographic that you are suggesting be targeted. You are basically suggesting that crypto bros should get rich off of selling a product to poor people that will only make them poorer. It's disturbing. This is exactly the kind of thing that makes me agree with title of this post.
Fortunately, most people have other options available for international remittance payments. For example, you can now transfer money to people using Visa in over 80 countries, all you need is their Visa card number, and the transfer time is 30 minutes or less for Visa debit. All the major retail banks have similar services, and there are plenty of money transfer apps (including a Western Union app), none of which depend on "blockchain technology."