250 chapters of and by itself is fairly meaningless.
Of those chapters, how many of them have more than say
20 members? How many of those members are active, e.g.
attend meetings etc.
If people actually speak to Millenials, they'll find there are MANY that aren't pod-eating Antifa-loving dolts. Many of them, among other things, don't WANT want other people's stuff. To be sure, they are probably more libertarian than your average Deplorable and, for example, may bring a few gay friends who won't hit on you, or sober pot legalization fans, out to the range with them.
If people can get around those elements then they can open 500 Socialist chapters. It won't matter...some men, you can't reach but the kids are getting smarter. The Dems will misread the news and keep putting up loser candidates that repel Americans. Trump is thus guaranteed to destroy whoever they put up in 2020 AND we'll have a Red Wave this November.