Yes, we do seem to agree from time to time about a few things.

The use of hydrogen as a fuel has some very real problems though. Hydrogen is best thought of as a "battery" as it requires more energy to make it available than it can yield when utilized. For this reason alone it would require a vast increase in power generation. (It would also require a total revamping of our energy distribution system--gas stations.)

Motor vehicles could be retrofitted to allow operation based upon hydrogen rather than hydrocarbons--at least theoritically vehicle design could allow fuel cells to replace internal combustion engines.

The great advantage of hydrogen is its total lack of chemical pollution coupled with a very high BTU/mass value. The method of containing hydrogen as a fuel in any meaningful amounts is however a serious problem in several regards.

These things are engineering problems--engineering problems can always be resolved if the will is found to exist. The cost might be another matter without a truly real need being found to exist--and that need does not currently demonstrably exist.

Common sense would hold that it will exist at some point in the future due to increased demand for hydrocarbon fuel sources--the time for the research is now.
President Reagan summed it up nicely, "Some people go through their entire lives wondering if they made a difference, Marines don't have that problem!!!"