It's important, as others have said, to look at the statistical validity of the poll. When I was in college studying psychology, one of my first assignments in Tests and Measures was to go to the library and find a published study with confounded results. There were tons of them. My prof was trying to impart the notion that not all published works are GOOD published works as well as to be mindful when we presented our data to make sure that the numbers were not skewed.
I think a wide margin on people would be fine with keeping guns out of the hands of psychotic and violent people. The devil is in the details with the follow up question of "how". Who decides? What constitutes "violent"? It's a slippery slope. We can all agree on that. How do you keep the public safe without infringing on the rights of responsible owners.
That said, as a guy in his mid-30s. I sometimes fall into the Millennal generation and sometimes lumped in as the tail end of Gen X. Personally, I feel more in tune with Gen X in my tastes and views, but being born in '81 puts me on the numerical fence.
I do have to agree that some of the responses come off as a bit crotchety. So what if younger people grew up playing violent military shooters instead of watching Gunsmoke. Why does that really matter? So they are young and under-informed about a great many things. Everyone in their 20's is an idiot. Some may have just lived long enough to have forgotten as much
I also think, to be fair, that we should point out that the Millenial generation is who is protecting our rights abroad as we speak. They are the ones that signed up for service when an active war was not only looming but on-going. Back when I graduated high school in 1999, kids went into the military either be "straightened up" or to get their college paid for. Service was practically cushy. The kids fighting today were not forced. There was no draft. They simply stepped up to the plate and went to war. For that, I can overlook some misinformed youngsters among their ranks.
I just think that it is unfair to paint a whole generation with a broad brush. Yes there are some of them that are young morons. Give them time. They'll figure it out.