Hmm, that does not seem to be permanent solution for this problem.  LN is alternative tbh, it's not solution. A solution would be changing of bitcoin's way of transacting. May be increasing rewards for miners and reducing the fees! However, opposite is happening after each bitcoin halving.


But not all the users are crypto users. Billions of transaction is vague concept at this stage. 
*LN is just alternative, not a solution.

Bitcoin holds diplomat passport, it's already going borderless.


I don't really understand with what you are comparing the bitcoin here? I mean we are talking about a currency use here. If you want to pay for the product you will pay with product cost inclusive of VAT, taxes etc. It won't matter if it's bitcoin or USD. 


If we created something we can surely overcome the problems for the same.

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Well, considering the current rate of growth, USA seems to be ahead of every other country. They have the roots spread out through "Institutional Investors". It means over the period of time they will have more and more crypto enthusiasts.