Poland is a relatively new member of NATO, however, it is correct in asking more of a presence by NATO. This is relatively new territory for the alliance so it would be a mistake to weaken the presence in Germany. Russia has to know we are serious about new members no matter how small the land footprint or population.
Wrongfully stated by President Trump was the idea NATO would have to respond to every aggression by a member population. NATO is a defensive alliance. We are strong and not over extended in populous ideas of war because it is an alliance based on peace.
The unfortunate reality of Poland in it’s rightful concerns regarding Russia is reflected elsewhere among the alliance, more precisely in the Black Sea where the USA has naval ships at the ready for defense of Ukraine’s people. So, Poland’s request is not frivolous. It will take time and infrastructure but I believe the next major military base of the alliance should be Poland.