would these hypothetical situations be considered rape?
1) you hypnotize someone into having sex with you
As others have said, it doesn't work that way. If it did, yes. Also, of course, a doctor raping a patient while that peron is under the influence of an anaesthetic, etc.
2) you get someone drunk so that you can manipulate them to have sex with you
Not a gentleman move but as long as you didn't slip anything into their drink and they drank voluntarily, No
3) you have sex with someone controversially younger than you, but they consent
What the hell does controversially younger mean? If the other person is too young and immature to really consent or there is a strong power imbalance, it's at least a grey zone. Maturity varies, but there is a reason for the existence of statutory rape. One could discuss at which precise age to draw the line, but that's difficult.
4) you manipulate someone into having sex with you when you know they'll regret it later.
Nope. Asshole move but not rape.
5) you threaten to withdraw support for an individual if they don't have sex with you (not support that they need, like a job, money for living expenses or healthcare, but some other type of support that they can survive without)
No
6) you threaten to withdraw support that the individual does need (such as those listed above)
Yes. Well or at least extorsion. Punishable either way and rightly so.
7) you make your spouse have sex with you after they have been witholding it from you
Hell yeah. What is this, the 19th century???
8) someone has consented to have sex with you. you're in the middle of things and they say "stop!" and you don't
Yes. Should be obvious. Not a nice situation and a good reason to know what you are doing before you do it, but definitely yes.
I also share Lark's suspicion about the motivation of threads like this.
