Man ... OH, Forget it .. This is getting nowhereYou don't get my point.
Tsukuyomi will not work on Rinnengan because it is an eye technique. I do not know how that works.
Gentle fist is a physical attack. No way captain obvious. I was giving an example. In other words, if you say genjutsu wont work on the Rinnengan because it is greater, then you are saying Gentle fist wont work on a Sharingan USER(In GENERAL) because the Sharingan is greater.