Yes, taken to the nth degree, you could argue anything that applies extra "risk" to some societal baseline creates a burden on taxpayers.
However, I think it is incumbent upon the individual to mitigate risk wherever practicable and sensible. It's not that hard to buckle a seatbelt, test your air regulator, check the chamber on a gun, or wear a helmet. The rate of return vs these simple steps is quite large when taken in aggregate. Changing one's diet - now that's another matter entirely, and one that is wrapped up in how food is marketed and distributed, psychological needs, and on and on. I'm guessing wearing protective gear does not fall into the same category.
I wish we could change how entitlement programs are structured in this country, but that isn't going to happen, at least in my lifetime. The best I can do is hope riders and others that engaged in "risky" activities take full advantage of the excellent risk mitigation techniques and technology out there -- to protect themselves, to minimize the chances of needing lifelong care, and to represent ourselves in the best light so policymakers don't perceive the need for additional regulation and legislation.
So in other words, you are claiming the right to make others behave as you wish by force, and thus also conceding to others the right to to make you behave as they wish by force. This is not freedom, or liberty, or ethically right.
You look at your neighbor and say "He shouldn't ride without a helmet; that could cost me money -- I'll support a law". Your other neighbor looks at you and says "He shouldn't ride a motorcycle, especially one o' those dangerous crotch rockets; that could cost me money -- I'll support a law". His neighbor looks at him and says "He shouldn't ski or snowboard or scuba dive; that could cost me money -- I'll support a law". His neighbor looks at him and says "He shouldn't barbecue all those ribs, he could have a heart atttack; that could cost me money -- I'll support a law". And so on. Where does it end?
It ends when people who value freedom, who have the guts to be free, who have the guts to let other people be free, say "Fuck off, it ends here". That's where.
I find it really strange, and sad, that I even have to argue for individual choice and the right to choose one's own risk levels, on a MOTORCYCLE forum. Come on, people, THINK!!
"If you want to be free, there is but one way; it is to guarantee an equally full measure of liberty to all your neighbors. There is no other." -- Carl Schurz, (1829-1906) German born U.S. Senator and Union Army general during the US Civil War
"A free man must be able to endure it when his fellow men act and live otherwise than he considers proper." -- Ludwig von Mises