Firstly, while those three tweets are admittedly ridiculous, they're from January 2014, which is two years ago, before Annoying Orange began his presidential bid, and I wouldn't consider those a part of his platform given the time elapsed. On the other side of the coin, there have been some pretty ridiculous things said by Sanders and Clinton which are equally mind numbing, but rarely brought up. Hillary is fairly obvious, but I'd like to present a tweet Sanders put out that is both incredibly ridiculous and mind-numbingly ignorant at the same time.

This tweet is from October 2015, which is, by my approximation, about four months and change ago. At face value, this tweet looks to be inconspicuous, but let's delve a little deeper.
What's the difference between a mortgage or a car loan and a college loan? I'll give you a few to think about it. Time's up, and the difference is quite simple: Income and collateral. College students usually have little to no income and unlike a car loan or a mortgage where there is a tangible object attached to the loan, a college loan has no collateral whatsoever.
Now, this could be forgiven for a simple mistake, but Sanders' specific complaint here is that college loans have higher interest rates than car loans/mortgages, which is a ludicrous idea. By definition, an Unsecured Loan is "[An unsecured loan is] a loan that is issued and supported only by the borrower's creditworthiness, rather than by a type of collateral. An unsecured loan is one that is obtained without the use of property as collateral for the loan. Borrowers generally must have high credit ratings to be approved for an unsecured loan."
In other words, a college loan is backed only by trust that the prospective student will pay back the loan. This student likely has no income and given that there is no physical collateral attached to secure the loan, this kind of loan is much riskier than the other kinds Sanders mentioned for the creditor. It's common sense that a creditor giving a more risky loan is going to charge higher interest, especially a college loan. While Annoying Orange may be abrasive and often rude, I think that sheer ignorance of economic policy is equally frightening.