Massive HP (sane)
My parents (who make around $300k a year) would pay a 62% tax rate under this plan (and around 67% if you include state income taxes). 67% tax rate is insane. No one should be paying that much.
This plan would kill jobs and would hurt all classes. Sanders is an insane nut job. He's well-intentioned though.
I like Hillary's plan a lot better.
Hillary's plan isn't insane
I would enthusiastically vote for Trump over Sanders. Trump is so much better than him.
As much I do oppose this plan or any plan that increase taxes, I do want to take exception with your personal example. If I read this chart correctly, the percentage numbers on the chart are marginal tax rates and not total tax rate. So while your parents whose income is $300K will pay more taxes under Sander's plan than today, it does not mean their total tax rate becomes 62% under Sander's plan, which I of course totally oppose.