I edited one word of my comment because I had another reply from someone who misunderstood what I was referring to, so i clarified so there wouldnt be further confusion, not to give myself an excuse to be snarky.

• I've read the article you've provided a number of times previously and while yes, it does indicate that there is no scientific evidence for my claim, it is limited to the UK.

• I don't see what interbreed-ability has to do with invasiveness?

I don't care about some American publication talking about cats

• I provided 3 sources, one was American, the others were from Oxford (also in the UK last I checked) and Tillburg (Netherlands), both discussing the EU broadly

• Here is another study from the checks notes British Ecological Society which concludes in part

"...It is also well established that free-ranging cats pose a significant threat to biodiversity conservation and restoration worldwide, and that remedying this threat is relatively easy when compared to other drivers of biodiversity loss..."

If you're not going to read the evidence I'm providing, while saying I'm only providing americentric evidence, then I'm going to respectfully abandon this thread. I apologize for the snark, that was uncalled for.

Edit: formatting only