Most of people who know well and research about bitcoin would support and trust bitcoin because they see many advantages of bitcoin and they can earn money from invest in bitcoin. People who hate bitcoin is banks and government, they can control bitcoin as the way they want and they see people is losing trust in banks and they have another choice much better than banks.
LOL. If Bitcoin will be legalized in any country, the bank system is these country will get a lot of trouble. They will lose a lot of capital cause people will withdraw all their money in bank to invest in Bitcoin cause it's totally better than bank and when they invest in Bitcoin they still can control their money not like deposit money in bank. That why there are a lot of bank trying to make the government in their country has bad thinking about Bitcoin and going to ban it.
These banks and their minions would naturally be resisting Bitcoin and the whole cryptocurrency movement for the very reason that Bitcoin is anathema to their own business and existence...of course not unless they will choose to join the club. Starting last year and now in 2018, we are witnessing the movement to ban or to control Bitcoin all in the name of regulations. Though I am not totally against regulations because there are really some issues that we have to tackle relative to the use of Bitcoin but then we should be careful that regulations are not injected with ways to instead stifle Bitcoin. The message we should be sending to these people and organizations is that Bitcoin is our way of expressing our disappointment with the government and the usual financial system and that we are taking back the power to our own hands.