Au contraire, Germany would have been parititioned by Poland and France never to re-emerge again.
Wishful thinking!
(You Poles love the realm of happy fantasies) ;)
As we now know the french army was badly led and totally uninspired. They only dared to go into the Rhineland for some kilometers even without any german army at all...before they got out running.
Poland would have do anything alone.
When you really think polish troops could invade Germany and Germany would roll over just like that because it's you - think again!
Even IF you would had come to Berlin, Germany is so much bigger than only the way between Warsaw and Berlin. It was still a huge country at that time...you neither had the men nor the material to occupy a meaningful part of the country to really enforce anti-nazism or stop re-armament.
Quite to the contrary your agression would make Hitler and the Nazis to freedom fighters and martyrs!
In the worst case you would have to put all men on occupation duty...what would leave your eastern side totally open for any russian plans (
which were german allies at that time with many german troops training there secretly).
In the end Poland would vanish from the map again, this time for good!
(And totally deserved)