this question of yours is too impossible to be happen, you know why?
very simple we all know that we have so many community here who really loved
patronizing Bitcoins, because Bitcoins changed so many things in different countries community.

Well yes the community is large to very large. Just look at the amount of users this forums has. But on the other hand there are competitors watching bitcoin.
Suppose all banks joins hands they could be able to make bitcoin vanish in a matter of 1 decade.