"By their fruits"

That is a pretty short, ambiguous answer....but...I assume you suggest that you...that is, *YOU* 'can' extract motivation and/or mindset from behavior. I congratulate you...I cannot. I have been suspicious in many cases, and could make guesses, but I have also been mistaken.

I usually try to restrict my accusations and condemnations to behavior, in so far as *I* find it inappropriate. I have had my own motives called into question on occasion, and had to simply leave the 'discussion' when the issue became whether or not I 'thought' a certain way...(they were wrong).

"Congratulations to the government of the U.K.! Brilliant plan indeed!" ....I doubt it. It may be a very bad move, but a PLAN to 'bait Muslims'?