1. did they who now hate him love him on 7 Oct? — YES
2. i would also suggest reading the following books
1. Peter Townsend “The Meccan Mystery”
2. Harry Richardson “The Story of Muhammad”
3. Robert Spencer “The Truth about Muhammad”
and Craig Winn’s “The Prophet of Doom”, free
http://prophetofdoom.net/pdf/Prophet_of_Doom_Entire_Book.pdf