Are you judging the motivation purely based on the effects? Otherwise, how are you working out what goes on inside people’s heads?

A combination of the effects, the prior actions, reactions and consequences of the subject and others in similar categories/contexts (to the extent i actually know/pay attention).

I don't know of another way of performing predictive analysis.

Also that didn't answer the question.

I think given that we all agree that there are voters who think this will protect children makes it crazy to think that politicians must somehow know better. It is well-accepted online that politicians are out-of-touch when it comes to technology, so it’s not like they understand the subject of this article.

I'm genuinely not sure what you are saying here, but i'll go line by line, tell me if I'm reading it incorrectly.

I think given that we all agree that there are voters who think this will protect children makes it crazy to think that politicians must somehow know better.

I don't know what this means, there are voters who genuinely believe this, yes, i think i follow that bit.

I'm not sure what you think is crazy here (i'm not disagreeing, i just don't understand) , do you mean to say the politicians do or don't know better ?

It is well-accepted online that politicians are out-of-touch when it comes to technology, so it’s not like they understand the subject of this article.

This i agree with, i can also anecdotally add first hand experience of the consequences of such lack of understanding.

Not sure how it ties in to the other sentence though.