In the rapid development progress of bitcoins, there has been countries where bitcoins are banned like China ,Bolivia ,Bangladesh and others.......... Since bitcoins are not in the hands of government , many countries have banned it and are in the phase on banning bitcoins............ So what should be done? What should be said to the governements?

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I would like to set somet facts straight here. Because you don't really know what you are talking about:
1. In Bangladesh, Bolivia and Thailand bitcoin is really banned. Bangladesh is the worst place for BTC so far: because "anybody caught using Bitcoin could be jailed under the country's strict anti-money laundering laws"
I am not really familiar if they are really executing this law.
- Bitcoin is banned only if countries which are weak and insignificant from the global point of view economy or either afraid that their own national currency is too weak to compete with cryptocurrency (Bolivia, Bangladesh). Or they banned BTC based on totally idiotic claims and fake prejudice (Bangladesh). Some countries (Thailand) actually start to change their approach towards BTC -
http://www.coindesk.com/bank-thailand-says-bitcoin-illegal-warns-use/2. Bitcoin HAS NEVER been banned in China. This is a lie and total misconception. Chinese government financial institution can't use Bitcoin - that is all. Furthermore China is basically controlling bitcoin mining.
So the issue of being banned on bitcoin in the china is wrong. This is great news, because bitcoin is a really a help. Without bitcoins, some countries will end up in economic poverty.