You really want to pay more for your groceries, for your deliveries, for your repairs, for
Aside from the moral issue of uprooting established illegals that have made a life for themselves over the last 10 year, to answer your question economically, YES YES and YES! When you import cheap labor, not only are you leaving Americans without an opportunity to earn a living, you now drive wages into the ground and force all those effected into taking more government assistance. That assistance is payed for by the tax payer. And who shoulders the cost? The broad numbers of the middle-class. As such, the disparity between the rich and poo/middle class is growing exponentially!
Pay now, or pay dearly later, but we all WILL PAY in the end.
The problem with using hydrogen in an ICE is an issue with 'hydrogen embrittlement'. It basically causes cracks to form in steel. In the case of a Wankel, a steel based apex seal would have a short life. I'm not sure what hydrogen would do to a more expensive silicon nitride apex seal however over its life.
With regards to why hydrogen is more efficient in an ICE; I think it has to do with detonation duration and time in the chamber. With a piston, there longer travel time for the gases to detonate and expand. In a Wankel engine, only 1/3rd of rotary is traveling (rotating) during the combustion phase, so a shorter duration in the chamber is an advantage here.
Nothing is impossible for the man who doesn't have to do it himself. -- A.H. Weiler