No, we're not dead last in the metrics that you cited, but we used to be a leader of innovation. Now we're somewhere near the bottom.
Those are the metrics you cited.
we're the #1 worst country in the world at handling this.
Out of curiosity, what metric are you basing this on?
Deaths, infections, testing 
I'm sorry that you took it literally, but I also don't think that you should so strongly defend not being dead last.
My bad. Please feel free to continue spouting off incorrect information based on statistics you've never read.
Since I said the worst, here is why I say that. It's not tied to one number, it's an opinion based on a number of factors. Among which:
* We had a head start knowing about this virus from other countries and thumbed our nose at it and LOLd at political rallies about it instead of getting prepared
* More details on "getting prepared" - we fumbled testing early which put us in a hole, we have no plan for attacking this at the country level even today especially around tracing, our medical professionals are rationing PPE like we're in a third world country. I look at other countries and they seem to have all of these things way more under control.
* Our stats per capita are horrible. Are we worst per capita in citizens dying? cases? Not yet. This isn't over either.
* I have a high expectation for our country's response to disaster based on our history. This is crap that we usually handle.