That is completely intellectually dishonest. He did no such thing. Paul Ryan is a speaker at a Rotary event, that must go on and he needs a transition to put the focus back to the speech rather than the screaming disruption. So he makes a joke of the behavior of Tom Nielsen, not the question. The way Mr. Nielsen conducted his question is what denies any right of his to have the question answered in any rational way at that event.
Interesting also, here's the statement by Congressman Ryan that preceded the ballistic reaction that you call "righfully so" (Srsly?!) ...
"Most of our debt in the future comes from our entitlement programs ..."
That statement is a fact. And you need to do more research into the Social Security System, signed into law in 1935 by FDR and bastardized by the DemocRATS ever since then in so many ways. Way too many people take out more than they ever put in which is why SS is on life support and needs critical reform which Paul Ryan is properly fiscally recommending.
Bottom line, government should have never been in the nanny state business of confiscatory retirement planning. That is up to the individual which is also a part of Paul Ryan's point.