Belonging to a group does not make you more credible to comment on an argument. Drop the tribalism and identity politics...
I'm sorry, but were you responding to the parent, or the grandparent, some idiot called x0ra, who wrote:
I guess you forgot that both Milo Yiannopoulos and Ben Shapiro are respectively of jew descent and practicing jew...
BTW you do know Ben Shapiro no longer works for Breitbart, right? He quit a year or so ago, when Breitbart started defending senior Trump staff when they assaulted Breitbart's own reporters.
Here's Shapiro on the alt-right. Amongst the choice quotes are:
[Bannon] allowed the site to be taken over and used by a bunch of alt-right people who are not fond of Jews, are not fond of minorities.
So FWIW, one of the two people you mention actually strongly supports the notion that Breitbart is controlled by anti-semites. The other, Yiannopoulos, incidentally, isn't proof of anything: he's attacked his own sexuality before, and he's rejected his jewish roots.