Let's face it, Paypal is more accepted and more used than Bitcoin, charge back is a tool to protect users from scammers but somehow scammers found a way to scam people using this tool.
PayPal payment probably is the most easy and accepted way for the merchants. But it shouldn't be the only option, we have master, visa, and BTC etc. As a consumer, I always tends to pay bitcoin or debt card and avoid to use third party money processors! Hopefully, Bitcoin's adoption rate will be able to compete with PayPal soon.