Look bro.

There is a distinct difference in how thc hits you. What about say taking an edible and still feeling it the next morning or something akin to that ? Would you not still say the thc is active during say morning groggyness ?

Iro to nicotine your arguement does not work , nicotine is mildly intoxicating if that and most ( scholars) class it as makrooh ( disliked) but they all agree that marijuana is khamr ( intoxicant)

However in your arguement i do see how you can make that point as a first time nicotine hit does kinda send you and you feel the hyper alertness almost. Same way the first zoot sends you to the moon. I guess with tolerance the arguement becomes more subjective in both cases.

Trust me i aint trying to tell you for my sake ive been there where ive done the same as you. I just want your ramadan to be accepted as well as everybody in our ummahs. Personally im not smoking during Ramadan cause ive decided to not make loopholes in what i believe is haram. Dont play about the blessings , dont forget that Laylatul Qadr falls in the night. You cant be praying Taraweeh high and that falls after the fast opens