Thank you for posting these quotes which show deeply how Piklsudski hated much more SU than Germany
Not really. He hated Nazi Germany after 1933 as well. But in 1918 - 1920 he had no reason to hate Germany.
And as I already explained, Polish policy was to appease both Germany and Russia. Not to provoke any of them.
why should Poland have become an ally of Germany ? I see therefore no benefits .
I see no any benefits as well. The only benefit would be war, which Poland wanted to avoid.
Joseph Beck's
"Policy of Balance" was to keep peaceful relations with
both (!) Germany and Russia.
Peaceful relations but not alliance (not "very friendly" relations), since Poland saw its main ally in France. And Poland probably realized that signing an alliance with Russia means war against Germany, while signing an alliance with Germany means war against Russia - while Poland wanted to avoid any war and appease both neighbours.
This Beck's policy of balance was the continuation of policy of balance of Pilsudski, who even said:
"Keep balancing * as long as it is possible and when it is no longer possible, set the world on fire!".
* It is about balancing
between Germany and Russia.
Which means exactly what later Joseph Beck said when he refused to accept German demands:
"We in Poland do not know the concept of peace at any price."
Both maxims mean that Poland wanted peace, but wanted freedom & independence more than peace.
(he would kill you for have said this).
No he was a peaceful and great man, he was not like those of Hitler's and Stalin's kind.
since anti-Communism was Hitler's main political ideology, from 1919 onward.
The difference is that Polish anti-communism was "defensive".
While Hitler's anti-communism was "extremely offensive".
It means: Poland only didn't want communism to spread to the West (including mainly Poland itself).
While Hitler not only wanted to prevent communism from spreading, he also wanted to destroy it completely.
On the other hand, for Poland it was completely indifferent if there was communism in Russia or not. Pilsudski even said that
"(...) Communism maybe has some prospects in Central Russia, but not in Baltic provinces (...)".
This quotation clearly indicates, that he only wanted to prevent Communism from spreading into Poland and Baltic region (Lithuania, Latvia, Finland, etc.), maybe also former Polish "Kresy" (i.e. Western Belarus & Ukraine).
But at the same time Pilsudski had nothing against existence of Communism in Central Russia. He even saw some prospects for Communism in that region, since local population was already accustomed to harsh rules.
Russian people were constantly under harsh rules since they were conquered by Mongols in 13th century.
Later Tsarist regime was not better than Mongol rules. So bolshevism would not make much difference for Russians, Pilsudski even acknowledged that maybe it was better for them (but only for them!) than Tsarist regime.
And Pilsudski knew Tsarist regime well, because as I wrote, he fought against it. Just like Lenin.
The expression of Hitler's anti-Communism in the international sphere was the Anti-Comintern Pact, which he invited Poland to join in 1938.
Yes - and this pact was aimed at destroying Communist Russia.
While Poland didn't want to destroy it. Poland didn't want any further wars against Russia.
It already fought one devastating war against Soviets in 1919 - 1921, which was
barely won by Poland.
Poland only wanted Communism to stay away from its eastern border, which was secured by Poland in the war of 1919 - 1920 and confirmed in the treaty of Riga in 1921. Later Poland signed non-aggression pact with Russia.
Poland also established Defensive Plan "East" against Russia, built a line of strong fortifications along its eastern border and signed several defensive alliances (inluding the one with Romania) in case of Soviet aggression.
So Poland was well prepared to repulse a possible Soviet invasion. Polish fortifications in the East were strong.
But there was no any desire to conduct any offensive war against Russia in Poland. Poland wanted peace.
This is why Poland refused to join the Anti-Comintern Pact. It simply had no interest in doing so.
Staying neutral and keeping peace as long as possible was Poland's most important goal.