So basically he killed timeline 2's Thawne not all Thawnes… Clever.

Also, this is probably the stupidest thing I will ever say on the internet. BUT, couldn't Eddie have just shot himself in the tenders… Ya know. It would have disabled his ability to reproduce thus causing his line of descendants to never exist aka the same outcome of shooting and KILLING himself.

You say: "If Thawne was never born, doesn’t that mean he never went back in time, never killed Wells, never killed Nora Allen, never created the particle accelerator that made the Flash and all of his villains?" But, in the other timeline that they went back too when they were chasing each other, the particle…