[使「し」][役「えき」][受「う」]け[身「み」] => Imperative N4
Causative, Passive, Volitional
受身形 => Passive voice N4
も構わず => without caring; without worrying about ~ N2
~V使役受身      => causative-passive form N4
Conjugate verbs
も[構「かま」]わず => Without considering A N2
Considering, Concerning
[受「う」]け[身「み」] => Passive, be V-ed. N4
Causative, Passive, Volitional
さえ/にさえ/でさえ => Even N3
Not only, Not even
~にたえる (耐える)    => bear doing ~ N1
さえ/でさえ => even; so much as; not even N3
とみえて/とみえる => It seems that ~ N1
あえて => dare to N2
Suggestion
の[末「すえ」]/た[末「すえ」] => conclusion N2
Reason, Result, Response