1. yes, but it's just an unstable equilibrium that can only be sustained because of:

a. cohercive force
b. lack of information 

The tendency is to gravitate towards one form of money (like it was during the old gold standard)

2. you have some good points about technical shortcomings of lightning and mining, for sure, they are not perfect.

However, I think you miss the bigger picture: Bitcoin is a better product.

We can argue all day about technical details, but they only interest us and some other nerds on the internet, but this day and age, people want to save.

Monero is a shittier saving technology, which makes it a worst form of money, by a factor of idk 10x. All it's improvements are very marginal, and nothing compared to this big drawback.