This is another one of those issues that will require some sincere "soul searching", in my estimation.
It reminds me of the departure from the wide availability of lead based gasoline in the early 1970s. Due to the clamor over what lead was allegedly doing to the environment, the laws were changed and so were the Manufacturers (and hobbyists) approach to how they built or modified engines. In the intervening 35 - 40 years, the hobby has survived and dare I say it - - actually thrived.
In 1973, I would not have imagined that the "factories" or "rodders" would be routinely building cars running in the sub 11s in the quarter on unleaded fuels. Yes, there was a "learning curve" but in the end technology prevailed and the hobby remains healthy - - we simply had to adapt.
As a 63-year old, I would like to think that my offspring will continue to enjoy the hobby that I love without unduly negatively impacting the planet to the point that their offspring (or they themselves) cannot survive on it.
A lot of folks have seen the "writing on the wall" as it relates to the use of fossil fuels in powering their race and/or hobbyist vehicles and are converting to E85 with apparent excellent results. I have not yet made that move but I am surely going to look into with the passage of this type legislation.
If you think about it, I believe most will agree that hotrodding, modifying and/or restoring our cars are really about making it/them "better" than what the other "guy or gal" has done within the limitations placed on us and/or the equipment.
I see this type issue as just another challenge to American ingenuity in our observance of the hobby while taking the lead in trying to do the right thing for the planet and our fellow humans.
That having been said, as Americans we have the right to lobby against those laws we feel are not in our best interests. In that regard, The Specialty Equipment Market Association (SEMA)" and the "Specialty Equipment Market Association Action Network (SAN)" are actively recruiting people to join at http://www.SemaSAN.com
to enhance their ability to lobby for the hobby on this particular issue and several others.