I submit one of the reasons our candidates are so bad is that our discourse refuses to hold them to account. Instead of taking a position and punishing bad acts, we excuse them by telling ourselves the other side "would have been" just as bad. So the lesson successful candidates take away is that they don't need to adhere to principles, because their voters will find some mental excuse (like you just did!) to vote for them anyway.

If you don't want this to happen you can't vote for the administration (not "candidates") who did it. Nothing changes until someone starts losing elections. But my guess is you aren't willing to go that far, because of something about Biden.