Satan comes to you through men (surah 114) and is tempting you whenever you read almost anything written by disbelievers online.
The way you're looking at and measuring Islam uses the ruler and looking glass of the disbelievers aka literally the satan.
A truly peaceful religion needs methods to keep the peace.
Aisha was never raped and was never abused, she loved the prophet (pbuh) and he loved her.
At the time of the prophet (pbuh) it was commonplace from Asia all the way to Europe to marry children off to adults as soon as they can have children, the greatest Christian kings and Chinese emperors had child brides, and anything that singled out Muhammad (saw) is a flagrant attack on Islam. It's also worth mentioning that only very recently has such marriages become culturally unacceptable.