I don't think that political turmoil can increase the purchase of bitcoin.
It might not be the sole reason for a price surge, but when the price is already going up due to an increase in demand, the extra demand from investors looking for a safe haven asset such as Bitcoin will help take even more coins off the market. Political chaos isn't something that fades away quickly, so we're basically dealing with people who are looking to sit on their coins for a longer period of time.
Actually bitcoin is not entirely a savior, sometimes it will be a disaster for you if you lose your wallet. Lots of cases of losing bitcoin wallets, hacking, fraud, and even disasters can destroy your wallet.
If you properly secure your system and refrain from downloading garbage, clicking on unkown links, etc, nothing will happen to your coins.
As for disasters destroying your wallet, that only happens when you haven't taken the right measures of storing your private keys. We're talking money here. You always should make sure that security is top notch and that you have enough backups stored strategically in different locations. Engraving private keys on a piece of metal is an option too if you aim at extra durability.