In short  both thing doesnt  affect each others path.  Its very  impossible for bitcoin  to  make banks would disappear  because   banks are there  for  a  long time and   its been already established  and  implemented  and also  plays a role society  which controlled by the  government  therefore  bitcoin would  not   do anything about it  even  how  bitcoin would  progress up in the future. Government would not   let this thing to happen though.

Government would  surely stop  it because  they dont want to implement  some stuffes without being  controlled  by them as we all know that  bitcoin cant be controlled thats why government would  saw that  bitcoin would  be  threat for them and  wont  let  any thing  to happen.

in fact when we can maintain the security access then we can also make bitcoin we have secured very well. even bitcoin provides strong security access if we can carefully store the data they hold.

As long as there is a consensus, there is no need for everyobody to use the core. Some people are using the Classic.

I think it would not be possible, the same as the impossibility for bitcoin to be able to shift fiat, as long as there fiat bank will continue to exist

The government does not have to complain, they just have to ban bitcoin in their country if they want it. That is why banks will not disappear, the government will back and protect them against any threat.

Current financial system run by bankers already facing serious threat but Bitcoin has nothing to do in this regard. Bitcoin just opened a new door for banks by introducing blockchain technology. Banks has no direct threat from Bitcoin because of its design and limited supply. Bitcoin will keep its independent identity till new digital currency era starts. Where bitcoin will keep important position to deal with.

Believe me, banks do fear Bitcoin as it has the potential to complete put banks offside if people all work together and start shifting to Bitcoin. This however is something that will most likely never happen as the majority of the people (average joe) will keep using banks for as long as possible. Another thing is that the current supply of Bitcoin isn't an issue at all since you can split 1 BTC into 100,000,000 Satoshi's. You can even choose to change your wallet settings to show your coin balance in mBTC or uBTC.

1 BTC = 1000 mBTC.
1 BTC = 1,000,000 uBTC.
1 mBTC = 0.001 BTC.
1 uBTC = 0.000001 BTC.

i dont know any profit like higher profit on bitcoin sir, except the price rising at the moment and the anony.
price can falling too, but banks will give you profit whenever thing happened as long you keep your money on the bank

Banks will always be needed, even if their not needed they will make sure there is something new that we need them for. they wont just close their doors and move along because some decentralized bitcoin comes along.