bitcoin prices now exceed the price of gold, according to you someday bitcoin prices will reach $ 2,000 / 1btc?
Yes, I do believe that the price could rise that high in the future. As soon as block size issues are finally resolved we could see a surge since people will genuinely be able to use Bitcoin. If we see a rebranding from Bitcoin to potentially bits, this could even make Bitcoin quite user friendly and potentially result in mainstream use from the wider population.
it certainly caused a lot of illegal acts to obtain bitcoin
what action should you do to keep your bitcoin wallet?
I suppose what you mean by this is that people are trying their best to steal Bitcoin. This is true, and unfortunately due to Bitcoin being pseudonymous will always result in that unless it compromises its principles. But it's not like there are no scams or theft with fiat currency - there are always going to be these problems but luckily we have a lot of good ways to avoid them when dealing with Bitcoin - from antiviruses and 2 factor authentication to the use of escrow when dealing with less trusted members.
I think generally, Bitcoin is safer in many ways than fiat currencies because if you get scammed, the scammer doesn't have your bank account details, so they can only steal your money if they can get inside your wallet, which is a lot harder than it might appear on the surface.