there is a trend emerging in the West
Your Minister of Defense with a complex last name said this last week. But he said it was not the West, but Zelensky who is trying to pull Poland into the war.
I think this is fully logical behavior for Zelensky. In Zelensky's position I would do the same.
It's not useful to involve Estonia, Latvia and Lithuania. Also, America would probably forbid them from joining to avoid a risk of escalation with Russia for little return.
Involving Poland is a different question, however, because Poland may actually have the capacity to produce meaningful results in the field.
Poland could become responsible for patrolling West Ukrainian skies against Russian long range attacks.
Poland could secure the Ukrainian borders with Belarus, Moldova, Hungary, and Romania - freeing up Ukrainian soldiers for the front.
From a Russian perspective, this would still be interpreted as Poland entering the war on the side of Ukraine.
I don't think America wants Poland to fight in Ukraine. Maybe Britain would like to see that, or France.