Renaming something has little to no impact on the value. It isn't easier for the value to change if it is smaller or larger. Especially something that can be handled in fractions. Claiming renaming bitcoin will have an impact on value isn't rational or even logical.
With stocks sometimes a stock split helps a small amount because stocks typically can only be bought and sold in whole units. However any effect is typically short lived. Typically only stocks that are growing a lot are split. The reason they go up after the split isn't related to the split.
Youre looking at it from a very narrow point of view, not the view of the average joe shmoe making 30k a year...they are not going to buy a 600 BTC and play around with it...and buying a .1 BTC is a very foreign concept to most people....
You're looking at it from too logical point of view...People are not logical...
The vast majority of BTC owners only own a small fraction of a whole bitcoin. It isn't a foreign concept at all. A main selling point of bitcoin is that it is easily to divide down to any size you want. Thinking that you have to have a whole unit and a label to go with it is the narrow point of view.