It is - it's the reason I have zero ash trees on my property now, and had to cut 30+ of them down over the last 10 years.
Emerald ash borer - Wikipedia
Zebra mussels, purple loosetrife, etc. The list goes on and on...
On top of contamination, there are species introduced in other ways, like people buying ornamental plants that end up in the wild. Giant hogweed is often in the news for example (don't go near it - the sap can cause severe burns if it gets on your skin and you are exposed to sunlight).
There's no end to the ways we are fucking up the ecosystems we live in...we all have forever chemicals in our blood, and eat microplastics on a regular basis...but hey we all get to have our trinkets, which is what is
really important!
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