If you mean convincing the exchanges to make the change then no. In fact, it seems even some users have a hard time believing it will make a difference.

The effect is called unit bias and is not uncommon. It is even observed in stocks when they split.
Don't try to prove logically that it makes no difference. We know that and of course it is the case... but we are talking about people's perceptions here which are not always consistent with logic.

Yes, as mentioned, eth has no problem being traded. Neither do btc, bch, dash and all the other coins with high value units. Nobody said that people will not buy a coin because of this. We are saying that it affects their decision, particularly the more inexperienced ones.

You could argue that in the long run it will not matter. Maybe, maybe not, but I see no reason why not to make the change if possible.

As for the argument that bittrex has a minimum trade of 50000 sat, it means nothing. So what if you cannot buy and sell a single unit? This is true for any coin lower than a 50000 sat/unit, so plenty of them.