As others have said, the Bounty means next to nothing.
You would have to be flying a ship worth billions for them to get billions from you. They only get 20% of the value of your ship from destroying your ship, every ISK of Bounty on you beyond that is unavailable to them.
So if you are flying a 1 million value ship they will get 200k out of your 3.5 billion. This is not going to make anyone relentlessly hunt you down. Basically the value of your ship and what’s on it / in it is still far more important than the Bounty on you, at least until you are flying a ship worth 15 billion or more (and even then I assume you would be more upset about the loss of your 15 billion ISK ship than them being able to take all the 3.5 billion Bounty on you).
The Bounty system is sadly a joke in EVE. It would be nice if it meant something, and there are ways to make it mean something, but as it stands it’s laughable.
Calm down, log back in, play and stop worrying about your Bounty.