、。
She is always critical of reckless drivers.
Literal
She [topic-は] reckless driving do person [toward-に対しては], always critical.
~に対しては ('toward, regarding') combines the compound particle に対する with the contrastive は. 乱暴な運転をする人 is a relative clause ('person who drives recklessly') modifying 人. 批判的 (ひはんてき) uses ~的 to make 'criticism' into an adjective.