Yes, and you're simply repeating the same misconceptions you had before despite attempts to educate you to the contrary.
The diagram is accurate enough to convey informally the shape of the Van Allen belts. It is not possible to fully convey the radiation properties of the magnetosphere in a single two dimensional diagram.
That is correct. The intensity of the Van Allen belts varies continuously over space and time. There are extensive mathematical models to help us plan space missions in and through them.
No. The "debunkers" did no such thing. We simply report the orbital parameters given by NASA (cf. Apollo by the Numbers, the debriefs, the press kits, and the mission reports) that describe the translunar trajectory and note that it does indeed pass through the weakest parts of the Van Allen belt at the poles. Keep in mind the poles in question are the magnetic poles, not the geographic poles.
Pure fantasy. NASA did not take their cues from debunkers. The missions were flown 1968-1972 and the data published at the time (e.g., the mission reports). Boeing separately published the Saturn V trajectories in 1968-1973 since it was their equipment that controlled the translunar injection. The first hoax claims were published in 1976, including Kaysing's claim that the Van Allen Belts posed an impassable radiation risk. We simply report and interpret the published trajectories that existed before Kaysing made his uninformed claim.
Asked and answered. What Prof. Van Allen said in 1958 is rudimentary compared to what he (and the rest of us) knew in 1968 after considerable additional study. Van Allen participated in designing the Apollo trajectories to avoid the trapped radiation environment. He is also on record repudiating the hoax theory that the Van Allen belts will prevent crewed missions to the Moon.
All this was presented to you previously. You're simply repeating your same fantasy as if nothing has been said to you.