His chosen words for women are not original. They're fairly common for what you see in incel forums.
"foids"
"sandwich makers"
"cum buckets"
"cunts"
"maxipads"
"bitches"
"2 X chromosomes"
The labels "chads" and "foids" are found throughout his writings, and he writes about his experience with being "touched starved."
I wouldn't be surprised if the incel stuff didn't turn out to be the primary driver for his killings. He could have chosen a lot of different soft targets for his act - black churches, synagogues, a supermarket in a black neighborhood, etc. - but he chose a premium outlet shopping mall in a predominantly white/Asian city on its busiest day and time.
While he knows the external trappings of Nazism will get him attention and press in a shock and awe kind of way, his internal voice in his writing is all about his deep resentment of all women and of men who have a normal relationship with women.