Half of the current Palestinian population were too young or not even born when Hamas was elected. So, nope not everyone bears the repercussions.
And Hamas' goal of destroying Israel wasn't the reason why they were elected. It was desperation. From
this source
"However, new polling following the election indicated that two-thirds of Palestinians believed Hamas should change its policy of rejecting Israel's right to exist. Most also supported a two-state solution to the Israeli-Palestinian conflict. Post-election polls indicated that Hamas' victory was due largely to Palestinians' desire to end corruption in government rather than support for the organization's political platform"