Now let's assume that the emboldened words in the passage are replaced by blanks:
The people of Hong Kong have expressed their _________over the _________laws ________on them by the ________country of China.
The second blank requires an adjective that can be used to describe the 'laws' that involve Hong Kong and China.
'Foisted' is a verb and is thus not a quality that can represent the characteristics of something.
The third blank requires a verb that can represent the action taken by the laws 'on' Hong Kong by China.
'Draconian' is an adjective and thus cannot act on the country of Hong Kong.
Thus, the terms 'draconian' and 'foisted' need to be interchanged in order to make the sentence grammatically and contextually correct.
Hence, the correct sentence will be: The people of Hong Kong have expressed their apprehension over the draconian laws foisted on them by the autocratic country of China.