Jira is agile: do you use Jira and Confluence and consider this one of the main reasons contributing to your agility? Congratulations, you are part of the problem.
Boring Backlog: fixed really hard bug? Implemented complex algorithm or cut processing time from 10 hours to 22 seconds? It doesn’t matter, just pick another thing from backlog. Scrum/backlog promotes code monkeys where good effort isn’t rewarded. Personal efforts don’t matter.
Story points implementation: as long as story is implemented, quality or tech-debt doesn’t matter.
Seems to me you've had issues with how people (mis)implement agile in your company, which is a common problem. Managers can't get their heads out of their waterfall ass. Agile's not to blame though, i've worked in teams where it was a breeze to work in scrum and quite helpful, so don't blame the tool.
Put a chimpanzee behind the wheel of a Ferrari and you'll still have problems.