I agree. And, just to be clear, I'm not saying I'm 'right' and the early career psychologists who will be fundamentally transforming the field in years to come are somehow 'wrong' in any absolutist sense. To a large degree, I think that we're often talking past one another.
When I say that science (as a process) and activism do not mix I simply cannot fathom that being an objectionable or controversial position if one understands the traditional approach to practicing science. Criticism of theories, debate, dissent, and doubt are the sine qua non of a scientific approach. Therefore, there can be NO sacred cows (or theories) in science that are above critique. But what I have observed, empirically, is that there very much ARE sacred cows/theories that are not to be questioned (or, at least, questioned at your own peril). 'Activism' is inherently a political activity with a clear 'agenda' of influencing the crowd in a particular direction on an issue...it is not an open-ended inquiry focused on asking critical questions and listening to the answers nature/data give us. Science is focused on the PROCESS of knowledge generation and question answering (WHATEVER those answers happen to be). By contrast, activism appears to be RESULTS or OUTCOME focused regardless of the process utilized to achieve those outcomes.