All new technologies are expensive and difficult to manage. With time meglev will become a "normality".. Why not start installing the tracks? Its the train sets that need further development.
The monorail is cost prohibitive. That money would be better spent maintaining existing systems which cost less even though they are
also failures.
If we think only profits all the time, like we currently do in the west, we can just as well hand over the future to countries like China and just sit around with a white flag.
Profit is not an end, it is a means to an end because of what profit does, like atract investors and create jobs.
You speak of acquiring profit as though the money is simply stashed away in some rich white man's vault, never to be seen again. Nothing could be further from the truth.
Subsidies is a good alternative to not doing anything great anymore.
Subsidy = debt; debt = economic slowdown, reduced tax revenue, increased inflation, fewer jobs, higher cost of living. To support subsidy is to oppose a strong economy, categorically. This is true for public transit, public education, public health care, etc.
Profit = capitol; capitol = increased flow of money, higher tax revenue, decreased inflation, more jobs, lower cost of living. To support profit is to support a strong economy, categorically. This is true for private transit, private education, private health care, etc.
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Not doing anything great anymore is the preferred alternative then subsidies because when you do nothing, you do not go into debt.
I, however, do not support doing nothing.
I don't see the issue as "
subsidize or do nothing" as you apparently do. I see another option: Capitalism, which works every time it's tried.
There is no need for the monorail, and even if there were a need, the cost is too high. I can't in good conscience support a high-tech Amtrak.