Correct i agree with you mate banks will not all is against cryptocurrencies, some other banks accept bitcoin to convert into fiat, people making issue to banks betwwen cryptocurrency to make an understanding partnership to blame the people.
Because there are some different bank who manage. There are a lot of banks that are agree by bitcoin because they also gain some profit by bitcoin. Some of banks can use as exchanging or can use as withdrawals of bitcoin to fiat. So, it is depend on the bank because not all the bank are against by bitcoin.