Guys, just look at the US now, with tens of millions of cases and desperately overwhelmed hospitals all over the country. This is a picture of how a virus tends to spread uncontrollably for 9-10 months. IF SARS-CoV-2 has been around Italy and other parts of Europe since March 2019, that's almost 11 months before the outbreak in Wuhan. That's 11 months of totally undetected and uncontrolled spreading with no human intervention of any kind. This means, even at the time of Wuhan outbreak, we should expect to see hundreds of million, if not billions, of cases all infected with unique European strains. Of course, you can say that people at the time had no idea what's going on and didn't know what to detect. One thing that is totally unrelated to detection is hospitalization, ICU admission and death. Based on what we see with what is happening in the US now, this means, at the time of the Wuhan outbreak, we should see European hospitals being seriously overwhelmed by mysterious illnesses. This is, however, not what we saw back then. Italy's hospitals only became overwhelmed in March and April 2020, after Wuhan. And we have no evidence that hospitals throughout Italy and Spain were all faking normal operations in 2019.
Also, with the European strains allowed to proliferate uncontrollably for almost a year before the Chinese strains, there would be no way the Chinese strains can take over and dominate as they are doing now. Epidemiological analyses almost unanimously show the Chinese strains as the originating strains for almost all the different viral strains now distributed around the world.
I don't know how to explain the new evidence in Italy and Spain. My own suspicion is contaminated samples. This happens quite often in labs even under the most ideal conditions. Even rock samples taken from Mars had been contaminated with earth bacteria despite the most careful and strict protocols of handling them...
With a virus capable of spreading so quickly, they should be able to detect evidence of the virus everywhere they look from samples they collect between March 2019 to the end of 2019. Yet, all they can find is isolated samples. this is to me an issue of contaminated samples.