Brightline is near bankruptcy. Public subsidies allow for lower pricing which attracts more riders.Yeah, I'm against paying money for terrible systems like most public transit. Public services can be served by the private market better, cheaper, and more efficiently in almost every case. Transportation isn't some mystery or natural monopoly.
Japan, Hong Kong, and Singapore all make money and thus it makes sense to run them.
Others generally waste everyone's money, breed crime, and provide marginal benefits to few.