Do you mean that, without strong evidence that we don't have, we should assume dualism, or that we have strong evidence for dualism?
If it's the second one, can you give me an example of such a piece of evidence?
The second position.
An example of the evidence is the two-way causal connection between your inner subjective experiences and the external universe.
As per a recent comment this thread is meant to voice contrarian opinions, that is anything this community tends not to agree with. Thus I ask you to post your contrarian views and upvote anything you do not agree with based on personal beliefs. Spam and trolling still needs to be downvoted.