Jill Stein is most certainly left wing. The Green Party has a lengthy platform which they proudly claim to be anti-capitalist. Clinton is actually more conservative(or neo-conservative) than Trump on some issues.
Your claim that Clinton is left wing is just as flawed as anyone who calls President Obama a socialist. ha ha
First of all, free trade is an ideological polar opposite of any left wing philosophy. Hillary called the TPP "the gold standard of trade deals" as Secretary of State. Obama is pushing the TPP heavily right now. FYI Obama deported more people in his first 4 years than George W. Bush did in 8. Obama is the "Deporter-In-Chief"
Secondly, Hillary Clinton doesn't even support single payer healthcare let alone socialism. This is further right than even the Conservative Party of Canada. You can see videos of even Chelsea Clinton on the campaign scaring people that Bernie Sanders wanted to abolish private health insurance.
Why would Goldman Sachs and all of these obviously capitalist Wall Street interests donate to Clinton's campaign if she was a leftist? The Democrats appeal to the left in their rhetoric and social issues, but the difference between them and the Republicans is not of kind, but of degree. Dems may be left of the Republicans, but they are still a right of center party.
What part of Hillary Clinton's campaign or the Democrat platform has anything to do with abolishing private property and nationalizing industry of any kind? The Green Party is most certainly left of center, but the Green Party platform and the Democrat Party Platform are nothing a like.
Remember even George H.W. Bush is going to vote for Hillary Clinton. She's free trade. Fidel Castro is a leftist. Hugo Chavez was a leftist. Clinton was on the board of directors with Wal Mart. lol
For more information on "leftism". Please start with Hegel and Marx and please don't take Bill O'Reilly's "far left loon" insults literally.