Why are Democrats the party of big corporations?

Yawn...         

Because Big Corporations paid for that deal.  Nobody else can afford either party, and together they're a monopoly.

It is difficult to understand.  They definitely do each other favors.  They are also the party of multibillionaires who actually are involved in running the world.  Too much money for anyone.

Most big corporations are owned or run by democrats. Plus they've donated huge amounts of money to the democrats, so why should they care about what their shutdowns have done to small business, what matters is what it's done for big business, like Amazon and big tech.

Found your picture.

You can only be on one side or the other.  The Corporations or the Consumers.  Trump was for the Consumers, or the middle working class.  Biden is for the Corporations.  You can see it in the policies.  Corp politicians don't care so much for job growth.  Working class is the opposite, of course.  

Generally, career politicians are for corporate companies.  The companies will support them as well, which is why we see Twitter and Facebook supporting the Democrats and banning Republicans.  There's money and power with corporations and that's how the Democrats get their donations. 

Sure thing, Comrade.