> 56% of political contributions directly to candidates from private donors who gave over $100,000, went to Democrats.
> NPR is an ally of the preferred political party of the rich.
In order to infer the second statement from the first, first you have to demonstrate that >50% of political donors (not donations) of greater than $100,000 were from Democrats. Perhaps Democract-leaning donors were merely motivated to make a bunch of donations over $100k, while Republican-leaning donors made fewer donations per donor.
It would be even better if you demonstrated that >50% of political donors above a certain wealth threshold gave to Democrats over Republicans
The website I linked bins per-donor, not per-donation. Of donations from donors who gave over $100,000 total, more went to Democrats than to Republicans.
That is irrelevant. If there was a Nazi party, you'd want NPR to favor the other parties. You haven't considered the possibility that they are biased towards truth. Guaranteed funding from the government is like academic tenure, it lets you focus on what matters rather than chasing hype/click-bait, and lets you stand up to the powers that be.