This is such textbook centrist fallacy. First, there's the false equivalency. Then, there's the total lack of recognition of the only political group who opposes the corruption, progressives. Then there's the call for a "centrist" - a group badly obligated to the wealthy, but who deny it - and "outsider" - that old myth. Every politician runs as an 'outisder' to some amount, because it's such a good propaganda claim.
Remember, trump won by claiming HE was an 'outsider' who would take the side of the American people against 'the establishment'. Bush ran against 'the establishment'. Obama did. Clinton did. Reagan did. Nixon did. On and on.
Then there's this gobbleycook nonsense about "radical" and "trust". Basically, that you saying that YOU fall for the con jobs of corrupted centrists, and you're telling others that that's the only group who can fix it. Just like Republicans and the team party and Libertarians and every group gets wrong, and like progressives who actually are that only group who will fix it.
Bias? Not so much. Hint: Not taking the huge donor money so much is part of actually being someone who will not serve them instead of being someone who SAYS they won't, but does. You are demanding a group who takes the big money and serves it be elected, and that voters not elect the one group who will actually fight on the right side of this. It's very gullible.