I agree that he shouldn't be criticized for staying on, but only if he publicly voices his disagreement in unambiguous terms. If Trump only wants boot lickers, he can fire Kalanick like he did the acting attorney general.

Of course, it doesn't look like that is the case. By all appearances Kalanick is mincing words as he tries to balance the affections of the administration and angry users. My guess is that he is just another spineless think-for-himselfer.