What's so terrible about saying "the system is rigged"?

[Gothmog]

7. There are two problems-first Sanders had no chance of being the nominee and the DNC did not fix race

Sanders failed to appeal to key groups in the Democratic base including Jewish, African American and Latino voters and so he had no chance of being the nominee. Most of Sanders so-called victories were in caucus states where the process is very undemocratic. Sanders was in effect eliminated after Super Tuesday but kept on campaign by misleading his supporters as to his chances of being the nominee. Clinton's lead after Super Tuesday was too great for Sanders to over come.

Second, the DNC did not fix the nomination process That claim was false http://www.newsweek.com/myths-cost-democrats-presidential-election-521044

Easily the most ridiculous argument this year was that the DNC was some sort of monolith that orchestrated the nomination of Hillary Clinton against the will of “the people.” This was immensely popular with the Bernie-or-Busters, those who declared themselves unwilling to vote for Clinton under any circumstances because the Democratic primary had been rigged (and how many of these people laughed when Trump started moaning about election rigging?). The notion that the fix was in was stupid, as were the people who believed it.

Start with this: The DNC, just like the Republican National Committee, is an impotent organization with very little power. It is composed of the chair and vice chair of the Democratic parties of each state, along with over 200 members elected by Democrats. What it does is fundraise, organize the Democratic National Convention and put together the party platform. It handles some organizational activity but tries to hold down its expenditures during the primaries; it has no authority to coordinate spending with any candidate until the party’s nominee is selected. This was why then-President Richard Nixon reacted with incredulity when he heard that some of his people had ordered a break-in at the DNC offices at the Watergate; he couldn’t figure out what information anyone would want out of such a toothless organization.....

According to a Western European intelligence source, Russian hackers, using a series of go-betweens, transmitted the DNC emails to WikiLeaks with the intent of having them released on the verge of the Democratic Convention in hopes of sowing chaos. And that’s what happened—just a couple of days before Democrats gathered in Philadelphia, the emails came out, and suddenly the media was loaded with stories about trauma in the party. Crews of Russian propagandists—working through an array of Twitter accounts and websites, started spreading the story that the DNC had stolen the election from Sanders. (An analysis provided to Newsweek by independent internet and computer specialists using a series of algorithms show that this kind of propaganda, using the same words, went from Russian disinformation sources to comment sections on more than 200 sites catering to liberals, conservatives, white supremacists, nutritionists and an amazing assortment of other interest groups.) The fact that the dates of the most controversial emails—May 3, May 4, May 5, May 9, May 16, May 17, May 18, May 21—were after it was impossible for Sanders to win was almost never mentioned, and was certainly ignored by the propagandists trying to sell the “primaries were rigged” narrative. (Yes, one of them said something inappropriate about his religious beliefs. So a guy inside the DNC was a jerk; that didn’t change the outcome.) Two other emails—one from April 24 and May 1—were statements of fact. In the first, responding to Sanders saying he would push for a contested convention (even though he would not have the delegates to do so), a DNC official wrote, “So much for a traditional presumptive nominee.” Yeah, no kidding. The second stated that Sanders didn’t know what the DNC’s job actually was—which he didn’t, apparently because he had not ever been a Democrat before his run.

Bottom line: The “scandalous” DNC emails were hacked by people working with the Kremlin, then misrepresented online by Russian propagandists to gullible fools who never checked the dates of the documents. And the media, which in the flurry of breathless stories about the emails would occasionally mention that they were all dated after any rational person knew the nomination was Clinton’s, fed into the misinformation.

In the real world, here is what happened: Clinton got 16.9 million votes in the primaries, compared with 13.2 million for Sanders. The rules were never changed to stop him, even though Sanders supporters started calling for them to be changed as his losses piled up.

I was a delegate to the national convention and I saw much of this silliness first hand. This election was winnable but the sanders campaign did a great deal of damage that is the subject of valid commentary